I am looking for self-hosted programs like this:

A program that combines the features of Mediarepo and Fopnu, connected to a metadata database like MusicBrainz. This integration allows users to automatically curate their file collections and contribute to the database by curating uncurated files. It enables efficient organization and easy searching of files based on their metadata. Users can also create collections and subscribe to collections or tags (creator, character, etc.) to automatically download new content when it’s added, without needing to search for individual files.

The closest I’ve found is Reiverr, which offers a clean UI for Jellyfin, TMDB, Sonarr, and Radarr, as well as a replacement for Overseerr.

Can anyone recommend programs that meet these criteria? Any suggestions or insights would be greatly appreciated.