Half of the time it’s just yt recommendations since I don’t get genAI slop auto thrown at me while listening to vocaloid/utau songs since they probably already categorize it as genAI despite it being in a weird gray area. It’s the closest you can get to ethical genAI¹ music, especially since you still got to put in a lot of work yourself.

From there I sometimes look through the producers channel if it’s their official channel and not some rando uploading a NicoNico/BiliBili/wherever exclusive song. If something really catches my eye, I have a good chance of clicking to try it.

¹ programs like Diffsinger and the latest vocaloid voicebanks use AI but not in a suno kind of way. Consenting people using their voices for these VBs, though harder to say if consentual for DF because anyone can make one. Latest vocaloid VBs went back to what was originally done in the first VBs in the mid-late 2000s: using machine learning

Edit:

I also find stuff through CDs I find at thrift stores and a nearby CD shop. Again, whatever catches my eye.