DYKGaming &
Yuriofwind, both for similar reasons. The former simply focuses on game facts from video game franchises such as Zelda, Sonic, Resident Evil, GTA, etc. while Yuriofwind has much more variety in content but still primarily focuses on game facts via Gaming Mysteries (which discusses Beta versions, history of games, dropped games, etc.). Along with that, he does reviews, Obscure Gaming (reviews of bootleg games), and also a series where he discusses various gaming related creepypasta's (does this in Gaming Mysteries, Gaming Mysteries: Creepypasta, and then finally his creepypasta series). He also injects humor into it, though your mileage may vary on whether or not that's a good thing.
I also have a few other people that are for their music but I never feel motivated to point those out specifically.