I've been mostly off the GitHub train since the MS acquisition, and think any alternative is a good alternative. Codeberg is great.

I've also been very happy with sourcehut for most of my personal projects for some time. The email patch submission workflow is a tad bit unfamiliar for most, but IMO in today's era raising that barrier to entry is mostly a good thing for OSS projects.

I also strongly prefer a simple CI environment (where you just run commands), which encourages you to actually be able to run your CI commands locally.