Are there any good mp3 music sites??

archive.org usually has whatever album im looking for

There's plenty of torrents and such to be found if you go looking and with a bit of googling you can find ways to convert youtube into mp3s (though the quality often isnt the best) but outside of that there are some options where you can directly support the artists. My go to is bandcamp.com but there's also soundcloud (although I'm not sure if you can actually download from there) and itunes.