There are 2 repositories under cydiarepo topic.
Duno Cydia repo manager a 2023 repo manager
Cydia Repo for Cydia. Compatible with Installer. Sileo thinks this repo is untrusted for some reason and won't let you install any packages from here and Zebra has problems with firmware requirements so you can pretty much only can use Cydia and Installer with this repo.
The best, open-source Jailbreak repo
My cydia repository.
Cydia Repository 1 (Backup, Inactive)
The best jailbreak repo (hopefully) To Add Your Own Tweaks And Themes Make A Pull Request