The Youtube channels I would recommend are the following:
Tech/Science
S3 - The stories of people working to change the world.
Modern Day Eratosthenes - A great STEM communicator who provides a moderate level breakdown of STEM topics. Videos are less than 12 minutes long.
Ziroth - This channel focuses on highlighting new science and engineering projects that are helping the world transition to a zero carbon future!
Speculative Science
Isaac Arthur - This channel focuses on exploring concepts in science with an emphasis on futurism and space exploration, along with a healthy dose of science fiction. While we explore many concepts and technologies that are far beyond us now, we try to keep everything inside the bounds of known science or major theories.
Analytical Tech News/Stories
TechAltar - Analytical videos about tech companies [and their products or services].
Tech Business/Economics/History Video Essays
Asianometry - One of my favorite YT channels. He does a great job producing high quality videos about tech history, tech related economics, and sometimes dives into what that latest tech is and how it might play a part in our future.
Humorous Business Journalism
Good Work - “Edge-cutting” business journalism, with a healthy dose of humor mixed in. Actually covers things that you might want to know more about in the realm of business, trading, and why the American economy is so freaking weird.
The Making of a Movie/TV Show
It Was A Sh*t Show - Making stuff is hard, especially in the entertainment world when there are millions of dollars on the line. And we are going to talk about these disastrous, never ending, and sometimes dangerous productions. With video documentaries and a companion conversational podcast, It Was A Sh*t Show is an entertaining look at some of your favorite films and tv shows, and why they were such a nightmare to make.
Frame Voyager - Mini-documentaries on films without the clickbait negativity.
Mini/Full Documentary Makers
Peter Dibble - Obscure history from the Pacific Northwest and beyond. I recommend checking out America’s First Cross-Country Auto Race.
Kirby Ferguson - He’s best known for his documentary series called, Everything is a Remix. He made an updated and extended version of it. I recommend it.
Engels Coach Shop. Dude rebuilds wagons and other horse pulled things from piles of rubble. Really nice calm guy out in Wyoming.
Pat Finnerty breaks down bad songs in hilarious fashion.
Alpha Phoenix is a good science channel
Kari, she’s a retro gaming nerd, really young but absolutely knows her shit
Look Mum No Computer. An extremely talented musician who does videos around analog electronic music gear.
Mbmmllc. They do mining videos. The Kenya video is unbelievable and I learned so so much about the world from it.
Periscope Films. Stock footage that varies wildly
V. Birchwood, Historical fashion
Andy Ward’s Ancient Pottery, dude digs up clay and teaches you how to make pots in a campfire.
These are my picks.