Soulseek is what I use to get more obscure titles that cannot be bought anymore and aren’t on spotify. It let anyone visit other people library of music, and some users share a lot.
If you want to find more stuff on it you should try it on a pc and setting up port forwarding (I don’t know if it’s possible with the seeker app) as without it, you can only see the content from users who port forwarded themselves.
I was a r/soulseek user, so I hope a soulseek sub will pop up somewhere here.
Your ip is indeed public with soulseek. I’ve never heard of anyone having issues with that as soulseek is really unknown from the public but you can use a vpn to hide it.