this is my favorite way of discovering music:
go into your spotify followers/following, find a cool person/someone from your past, go into their followers, find a cooler person, peruse their playlists, add anything that looks cool to your queue -- rinse and repeat ad infinitum.
i tend to go down a rabbit hole when i do this which means i never get through the whole queue so i add all those songs to a massive playlist called "today's queue" that i put on when i need to expand my taste. i just add the whole thing so it's a nice mix of new and old that makes the combing-through experience very fun. as i listen to the songs i release them from today's queue and add them to my liked songs or discard them into the digital void.