Comment by Merad

Csharpier is the best option available. I've been using it for 3-4 years now and had success getting it adopted at my last two companies on greenfield projects. It's not exactly an unknown tool - nearly 2k stars on Github. But a lot old school .Net companies just don't seem to have much interest in auto formatters because they've been working without them for a long time.

If you're using csharpier you don't need to use Roslynator formatters. No issue with the analyzers package. The csharpier docs have info on what StyleCop rules need to be adjusted so they can work together. Personally I don't use StyleCop anymore as it seems to be fairly dead, and I don't really feel the need for things like enforcing file layout or naming.

Edit: Also I will add that unless the landscape has changed recently, I believe csharpier is the only C# tool that has deterministic formatting good enough to enforce code formatting checks in CI.