A few of the YouTube channels that I keep up on for good music recs.
Saturn Archives 土星のアーカイブ - All kinds of off the wall music. I've found a lot of favourites on this channel.
area mode - Good resource for obscure electronic music
Instant Classic - Instant Classic is a great record label that lives up to its name with a lot of its releases imo. They upload most of their material to youtube.
Samuel Andreyev - Informed, interesting (as opposed to annoying ass Adam Neely), and well done musical analysis with a bent towards modern classical. He also explores outsider music as well and has some interviews too. I'm wont to give the music that he bases his videos on a really close look before I watch them.
Nicolás Guzmán - Has a lot of diverse and uncovered stuff but isn't really that active anymore.