Soulseek is the goto piracy thing for music.
Streaming service ripping is alive and well.
Youtube scrapers like Newpipe and alternative frontend makes listening easy if you aren't quality obsessed. This has been adequate for my levels of listening.
Some private trackers have massive music collection dumps.
However, I'd say directly supporting artists through storefronts like bandcamp is the best way to go, where it's available. No DRM, no bullshit, the artist benefits. This, to me, is the best alternative to piracy.
Napster, Deezer, Tidal aren't terrible offerings either FWIW.