In alphabetical order for no good reason:

BeardMeatsFood - Competitive eater turned touring food challenge attempter. Wins more than he loses.

Dr Becky - Astrophysicist. Monthly space news updates.

Lock Picking Lawyer - Masterlock’s greatest foe. And a foe to many other terrible locks and safes too. Look out for the April Fools videos.

Numberphile - Brady Haran’s popular channel about mathematics

Periodic Videos - Chemistry videos by the same producer as Numberphile. He has a bunch of channels, but I’ll only list the two here.

Primitive Technology - No voice-over or talking head(s), chill vibes, primitive building techniques. The original. Be sure to turn on subtitles / closed captions!

Simone Giertz - Down-to-Earth Inventor and Entrepreneur. Formerly the Queen of Sh*tty Robots.

Simon Roper - Linguist with an interest in English

Weird Explorer - Reviews weird and wonderful fruits from all around the globe, many you’ve probably never heard of. Currently branching out into some home gardening videos, but still doing fruit.

Most of these have extensive back-catalogues that would take some considerable time to get through. Enyoy.

Tom Scott (he’s back after a break)

John Michael Godier (science and astronomy)

Videogamedunkey

Any Austin (deep dives into minutea of video games)

• Mathematics
  • 3blue1brown
  • Numberphile
  • Mathologer
• Science
  • PBS Space Time
  • minutephysics
  • Alpha Phoenix
• Technology
  • Technology Connections
  • Benn Jordan
• Video Games
  • Any Austin
  • Acerola
  • Displaced Gamers
• Speedrunning
  • Summoning Salt
  • Bismuth
  • pannenkoek2012
• Other random stuff
  • Ghoul City Online (Comedic reviews)
  • Hazel Thayer (Leftist topics)
  • In Deep Geek (Tolkien lore)
  • udiprod (Algorithm animations)

In no particular order:

Dr. Becky (astronomy)

Josh Johnson (comedy)

New Venture Games (old man boardgaming)

Cornell Lab of Ornithology (ornithology)

Ant Lab (entomology)

Practical Engineering (engineering, mostly civil)

Numberphile (maths, as they say across the pond)

The Octopus Lady (marine biology)

Juniper Dev (young gun making games)

suckerpinch (software stuff)

Jenny Nicholson (media critic)

engineerguy (engineering)

Steve Mould (physics)

Dang, I gotta clean up my subscriptions. I tend to add people when I find one good video, then ignore them when I find they aren’t to my taste

I’d say that the only channel I come back to time and time again is probably technology connections. Just the right amount of snarkiness and information.

Most of my favourites have already been mentioned but here’s a few that I haven’t seen:

• Chris Spargo - Documentarian ‘Answering life’s little questions’ (in his own words)

• HowTown - Well researched, slick documentaries on science and sociology

• Useful charts - Family trees and history combined with some nuanced religious history

• Map Men - Somehow both an incredible geography channel and very funny skit show

• ToldInStone - Regular and endlessly fascinating ancient history content

• Captain Disillusionment - A one man special effects genius makes funny deep dives and debunks on special effects topics

• Nile Red - Chemistry wiz kid makes alcohol from toilet paper - The closest thing to a modern alchemist I can imagine

• Joel haver - Inventor the rotoscoped paint cartoon, funny, creatively driven and refuses to sell out

• Patrick Boyle - Educated, nuanced and cuttingly dry humoured takes on popular economics issues

• Steve Mould - High quality science demos and explanations with an engaging and humble host

Cody’s Lab. A lot of channels do cool shit for their youtube channel, and it feels like Cody has a youtube channel for the cool shit he’s already doing. Like, vacuuming out a chicken coop. Check out how he does it without dirtying the filter on his shop vac. Or an infinite pickle jar. With a couple design modifications, that could legit be a marketable product.

Also Know Art. I can’t even imagine the effort it takes to make the 3d models he uses to explain things, but damn if I don’t know a hell of a lot more about telescoping mechanisms and drills and buttons and phones and staplers and saws and like a million other things because of their amazing channel

In no particular order:

• The Rest Is Science (podcast)
• Technology Connections/Connextras
• Jeff Geerling / Level 2 Jeff – Edit: see replies below
• Techmoan
• Gamers Nexus / GNCA
• LGR
• Switch and Click
• The Linux Experiment
• Tasting History with Max Miller
• Ben Eater (breadboard computers)
• Stuff Made Here (engineering)
• Up and Atom (science)
• Simon d’Entremont (photography)
• Words Unravelled and Rob’s Words (English language)
• Kurzgesagt – Edit: see replies below
• Veritasium – Edit: see replies below
• Tom Scott (the returned)
• Asianometry (tech history)
• Clabretro (retro networking and server hardware)

Edit: A few bonus channels that may be of interest but didn’t all fit the criteria for me:

• Action Retro - doing silly stuff with old computers - more recent discovery for me
• Dr Geoff Lindsey - Linguistics - I only watch occasionally - can be a bit heavy on the linguistic science for an amateur like me.
• Lftkryo - Linus Åkesson - an absolute wizard coding on the C64
• RetroBytes - computer history. Most of his content is mainly him just talking, so I can just listen while I’m doing something else
• Tech Tangents - more of a recently discovered channel for me. Vintage hardware. Underrated channel.
• Serial Port and Parallel port - vintage computers and networking. Brings back memories from my days working for an ISP.
• Honorary mention to Veronica Explains. She keeps things pretty basic so I don’t get a lot out of her videos, but I like her stance on open source and not selling out. She posts everything on Peertube as well.

A lot of them, but if I’m going to pick a top 10:

Urbanism: About Here, Not Just Bikes, Adam Something

Video Essays: Big Joel

Intercultural life: Chinese Cooking Demystified, Uyen Ninh, The Korean Vegan

True Crime: Matt Orchard- Crime and Society

Health: Viva Longevity!

Recipes: Rainbow Plant Life

New find shout out: Animagraffs, very cool video on the construction of the Hoover Dam

Blondihacks. Genuinely some of the best machining videos for a small hobbyist I have seen, I look forward to every weekly episode. My dream is one day to recreate a small fraction of her things.

• Internet Comment Etiquette with Erik
• Veritassium
• William Osmon
• Technology Connections
• LGR
• Bringus
• Macho Nacho Productions
• polymatt

I’ll add my own recommendations as well!

• Mike Okay (travel)
• Any Austin (niche gaming deep dives)
• Inheritance Machining and This Old Tony (machining)
• Pask Makes (woodworking, metalworking)
• Tested (particularly Adam Savage’s One Day Builds series)
• Quips&Guac (MTG)
• Pete Complete and Ambiguous Amphibian(gaming challenge and long form roleplay series)

In addition to lots of other channels already mentioned, there are:

• The Elephant Graveyard
• Bobby Fingers
• Folding Ideas
• Thought Slime
• Technology Connections
• Nutrition Facts
• Viva Longetivity
• Not Just Bikes
• Climate Town

Hi, I’m the one that asked the opposite question that Op linked to :p

Ashens.

He doesnt make many videos anymore, though theres always a cchance for a random burst of uploads, I think his actual film making hobby has taken more importance, which is understandable, but that is made up for every christmas when he and nerdcubed do some crazy advent calendar thing for 24/25 days leading up to christmas. Which is a yearly christmas ritual for me, to watch all the old ones, and the new one, every year.

Cutting Edge Engineering Australia.

An Australian machinist that does repairs for heavy digging/mining equipment. Rebuilding hydraulic cylinders, repairing smashed frames, manufacturing new to spec parts (for a fraction of what they’d cost from the manufacturer), plus he also has videos on making new shop tools, and a long running series about totally rebuilding a truck crane… Which kinda lost its urgency and importance with a new ceiling crane they got installed, but are still gonna work on it and finish it.

Used to post one video every friday, but their shop has gotten busier and busier and they made an announcement a few months back that they were going to a every other week release schedule, which makes me sad because watching him was my friday morning ritual, but I’m not upset about it because his business is doing gangbusters and i’m not so self centered as to expect him to sacrifice business that pays $$$$$$ to keep making videos that bring in a fraction of a fraction of that.

Copied from my previous answer on the topic.

Ancient Americas is the best pre-columbian history youtuber. I always watch his videos.

Here are some others I usually watch.

Stefan Milo for anthropology

Dig. for ancient near east topics

PBS spacetime for physics videos

Whats going on with Shipping for updates on the shipping industry

Technology Connections and LaurieWired for random tech stuff

Grant Harting to watch a pharmacist eat random pills

Road Guy Rob for road engineering information

Canned Fish Files to watch a man eat sardines

ESOTERICA for information on history, magic and religious practices.

Crime Pays But Botany Doesnt for botany tours of predominantly the American southwest

Asianometry for random history and tech history videos

Andy Wards Ancient Pottery for learning about historic ceramic practices

Patrick Kelly for healthcare and medical history