vinyl, CDs, tapes, rummage through the record store. Speaking as a former college radio guy, I’ve found the most interesting music in my life by forgoing any streaming and algorithm all together. ported my entire library over into an iPod and found that far more fulfilling!
besides that, listening to the radio is great, college radio in particular always has something, even if its just pop music, you are getting something curated with intent every two hours and that matters.
also, talk to people you know about what to listen to! do not let a machine give you vibes based recommendations!