There are a few sites still supporting it. I'm glad Patreon still supports creators creating porn, for example. Also porn games are becoming more accessible on places like Steam now.
Overall I agree with you though that most sites are banning or degrading in quality.
I'm personally very skeptical of all these rarbg clones.
I used to run OSMC and had Kodi and everything on there but honestly it was more trouble than it was worth. Kodi and it's piracy addons are pretty buggy in most cases and fail to work reliably for very long. Since then I've switched back to using Plex but soon I may have to switch again to Jellyfin.
I have Rust experience and will consider helping out. I've been wanting to help out Lemmy recently anyway.