Back when music blogs were exploding, it was a great way to discover new music. I'm not sure how many of those are still around, but hype machine has been out there for probably 20 years now and that was always a great way to just blow a few hours listening to all kinds of new stuff - https://hypem.com/latest/all

There's also local independent radio stations, many of which have streaming now.

WYCE is my personal favorite - https://grcmc.org/wyce