The Modern Rogue: They are like Mythbusters but dumber, and they do dumb stuff, funny stuff, interesting stuff, and on occasion, dangerous stuff:
This is one of my favorite videos they've done, in the interesting category
Overly Sarcastic Productions: Two people who do videos, one of them focuses on history and the other on mythology and literature (particularly different tropes, their origins and their use in modern media)
Ph1lza: A Minecraft youtube/streamer who does hardcore exclusively and is incredibly chill and entertaining to watch.