I used to discover a lot of new music on Youtube, actually.
If you watched a music video you liked, the algorithm recommended related stuff, but also threw you a curveball with <1000 views once in a while.
I stumbled upon a lot of great bands that way.
But nowadays, 3 videos in it’ll all be AI slop, so I’m open to new ideas and willing to pay for a service, too.
Anime! Anime is to Japanese music now (really, since Attack on Titan and Sword Art Online blew up in 2013) what MTV was to western music in the 1980s. When I hear an opening or ending I like, I Shazam it and add it to a Japanese playlist I have, and if I really like it, I’ll explore other songs by the artist or band.