Channel: Holy Fucking Science
tl;dr: Video podcast from the folks at Complexly (Sci-Show, Crash Course, etc etc) where friends get together and share cool science stories and facts in an effort to make the others exclaim "Holy Fucking Science". If you like watching these people do other stuff, you'll probably dig this too. Fun, smart people talking about cool sciencey stuff.
Channel: Draw With Jazza
tl;dr: Admitedly one of my online role models atm, dude is a crazy talented illustrator and animator, he does a lot of really bizarre live chat inspired drawing challenges that end up with things like... "Sexy Post-Apocalyptic Ghost who wields the weapon of love." and other such delightful insanity. Jazza has a HUGE love for VR art and recently as part of his CRAZy successful kickstarter to build a new studio space has a full immersive VR setup. So he's doing some really cool stuff.
Channel: Andrew Huang
tl;dr: After starting to blow up after his song "Pink Fluffy Unicorns Dancing On Rainbows" went viral, he's made a name for himself as "that guy that makes songs out of everyday objects" but he also does a lot of really cool other song stuff, and does a fair bit talking music theory stuff that goes way over my head but is still entertaining.
tl;dr: It's Auralnauts...I mean...if you don't know these guys yet WHAT ON EARTH are you doing with your life. Start here and just go:https://www.youtube.com/watch?v=WSCm8yAxBr8
Channel: Barnaby Dixon
tl;dr: You might have seen the gif of the dancing finger puppet guy that went around a while back. Yeah that was this guy,
his primary character is called Dabchick... he's a bird finger puppet that vlogs. It's adorable and hilarious, and cool puppet stuff all at the same time.
tl;dr: Pure. Machining. Porn. He has a completed series making a brass mechanical clock from scratch, but his current project is making a full working version of the Antikythera machine, reconstructing it from 3D scans and best guess understanding of tools and techniques of the time. I love this channel so much.
Channel: Drew Lynch
tl;dr: If you're not a fan of the vlogger thing probably not for you, but Drew Lynch is stand-up comedian with a stutter and an adorable dog who makes vlogs about random things.
Channel: Malinda Kathleen Reese
tl;dr: On top of being an AMAZING singer, she has an on-going series titled "Google Translate Sings..." and it's pretty much what you'd guess, take a song, run it through a couple dozen layers of google translate, sing what comes out the other end.
Hilarious, bizarre, random and ingenious, one of those channels that really still feels like old school youtube.
Channel: Rob Scallon
tl;dr: One of the old school music guys on youtube still making fantastic stuff. This guy Djents.
Channel: Jonathan Young
tl;dr: Pop/Punk/Rock/Metal covers of a variety of music, but A LOT of Disney and Dreamworks. And it's all amazing.
tl;dr: This one's tricky, they put out a lot of stuff but thier primary host these days, Norm, is just..nooooot gooood, meaning most of the interviews and content they put is awkward to the point of cringey most of the time (YMMV, if you're interested in the specific content, and can manage to get through it, there is some really interesting stuff), HOWEVER, this channel is co-run by Adam Savage, yes, THAT Adam Savage. And he posts semi regular one day builds and projects and his Comic Con ingontio's, and watching that man at work is a thing of inexplicable majesty.
Channel: Caleb Hyles
tl;dr: Another music cover guy, does a lot of collabs with Jonathan and Malinda.
tl;dr: Easily in my top two cooking channels with Binging With Babish right now. 4 British idiots make amazing food, this is probably the closest I've ever seen to a properly executed "Cooking Show But For The Internet". On top of in studio recipes they also do trips to go find amazing food, they just finished a short series exploring Kansas City and Chicago for amazing food and last year they had a MASSIVE Lost and Hungry tour across the US exploring restaurants and food experiences.
tl;dr: Are you like me and get a kick out of watching crazy smart people talking about the crazy smart stuff they do, while understanding maybe 1% of it, and maybe increasing your knowledge of a thing by a small fraction of a percent by the end of the video? Then HOOOBOY is Numberphile for you. Mathematicians talking about super nerdy and interesting math stuff that nobody ever bothered to tell you in high school cause that would have made math actually interesting to learn about.
Teague stole a lot of my educational ones, but I'll double down on Binging With Babish, Crash Course/Sci Show, StandUpMaths, MinutePhysics, PBS Eons, Primitive Technology, and Tom Scott. (Also doubling down on getting squicked out by "The King of Random - Grant Thompson"...but that's beside the point.)