I’ve heard the main two suggestions are Codeberg and Gitlab. However, there has been some mixed feelings about GitLab I’ve seen across the internet in regards to them being as FOSS as Bitwarden is with their “Open-Core” model. With Codeberg though, there was a recent major security issue.
I would just be curious to get other people’s thoughts throughout the community, and then I can decide where I want to migrate my repos.
I like Fossil-SCM, so https://chiselapp.com/ is good for that. But if you want to stick to Git, Forgejo is the best open-source offering (and Codeberg is the most prominent instance). If you want to tread far off of the beaten path, https://hub.darcs.net/ might meet your needs.
We’ll all benefit once the forgefed project is done, and Forgejo/Gitea/Gitlab can all interact with each other.