I’m a fan of Immich.

https://immich.app

https://github.com/immich-app/immich

These are private trackers but they are open for signups pretty regulary:

https://bitsexy.org/

https://www.happyfappy.org/

Kodi and Jellyfin are great alternatives to Plex. Look around a bit.

Real-debrid works great with rapidgator.

Edit: costs 3€ per month.