Best way to auth to GitHub.com?

Hi! 

We generally recommend using a GitHub App connection in TeamCity rather than a GitHub OAuth app. GitHub Apps give you more fine‑grained permissions, are easier to manage at the org level, and work better with webhooks and checks. OAuth is still available, but it’s mainly useful for user sign‑in and simpler per‑user access, while GitHub App is the preferred option for most CI use cases. 

Please let me know if you need any help with it.

Thanks