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.
There's Gitea, which you can also self-host
There's also Forgêjo, which is a fork of Gitea.
Gitea was forked because gitea was owned by a for profit company.
+1 I use gitea and it does everything you'd want from a git server with minimum resource retirements, unlike Gitlab which is heavy