There are a lot of resources for getting help with QMK.

Realtime Chat

You can find QMK developers and users on our main gitter chat room. We also have other rooms for more specific discussion:

OLKB Subreddit

The official QMK forum is /r/olkb on reddit.com.

Github Issues

You can open an issue on GitHub. This is especially handy when your issue will require long-term discussion or debugging.