I follow a lot of
movie stuff.
Lindsay Ellis. My YouTube crush. Doesn't make videos too often, might be in some kind of a hiatus, but her long videos are basically all well worth watching.
MovieBob / Bob Chipman in general. Excellent movie critic, but also does all sorts of pop culture stuff, like general commentary on games as
Game Overthinker. A great source if you want to get know more about all the comics that are possibly made into movies without actually reading All The Comics. MovieBobs Schloctobers are a great source for learning about some truly mind blowing schlock
Lessons from the Screenplay. This is a channel that gets quoted in Hollywood production meetings. Fantastic source for understanding how movies are made.
Patrick H Willems. Guy loves movies and has interesting stuff to say about it, most of the time. Longform.
Politics/Philosophy/History
LindyBeige is a British guy who talks mostly about history and/or war. I find him entertaining and informative.
ContraPoints. One of the absolutely best things on YouTube. Kind of hard to explain. She does a lot commentary on things topics related to either alt-rights or feminism, but she's both better at making interesting and relevant points than basically anyone, and also is visually more interesting than basically anyone. Takes a bit of getting used to, but well worth the effort.
Almost a sibling channel to that is
Philosophy Tube. A British actor / philosopher, who also makes visually ambitious videos and covers extremely heated topics with a lot of nuance. A flaming leftie, but you don't have to agree with those ideas to find his points interesting.
His older videos are a lot more basic, drier history and philosophy stuff, but many of them are really good.
This for example is probably the best explanation of Antifa that exists in any format.
I also really strongly recommend his video series on liberalism. You might not agree with everything in it, but it's still a really useful point of view to understand if you want to understand modern politics.
I also follow
Overly Sarcastic Productions (writing, mythology, tropes...)
Just Write, about writing
Knowing Better, general knowledge
Shaun, factual arguments against the far right
Oh, and
Shadiversity. Medieval history and/or medieval D&D -style fantasy. Recommended if you're into that stuff.