Most of the discussion and sources of content talk about movies and series.
I've been recently looking for psy and techno music, finding FLAC or WAV with active seeders feels like striking gold. It's definitely been a while since I've looked for active torrent sites and it feels more barren than ever.
Edit: Thank you all for all that valuable information. The reddit group really wasn't this helpful and valued making fun over adding real use able knowledge.
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.