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.
Any software potentially has security issues. The matter is how they deal with it.