As a guy who is hearing impaired, my biggest gripe with YouTube is the lack of closed captions on most of them. The Korean Girls supply them, so that's a big plus. Don't need them for inept Golden Retrievers either. But there is a lot of stuff that I struggle to follow.
Lately I've been watching these "What makes this song great" vids by this music theory/instructor guy Rick Beato. I think he has some good connections in the music world because he gets the isolated master tracks which allows him to break down the songs and discusses unique things about the song, chord progressions, etc.
Even if you don't know much about music theory it's still fascinating and addictive stuff to watch. He's done about 30 of them, covering all kinds of songs from diverse artists such as Bowie, Boston, Nirvana, Police, Rage, Chili Peppers, etc. Something for everyone's music taste. It's great fun hearing things you never noticed in a song before or hearing just the bass line, vocals, etc all by itself.