As far as I know there is not an official plugin yet to support OpenID Connect in NodeBB.
If anyone is still looking for a work-able OpenID Connection option, we've built one for production usage but it should work with any OpenID Connect identity provider.
Supports discovery using the .well-known/openid-configuration URL
Supports configurable email claim, defaults to email
Supports Logout URL
Optionally map roles by a named claim provided in the Userinfo endpoint response
Documented option to bypass the default login panel
Feel free to open an issue if you find it is missing anything.
https://github.com/FusionAuth/nodebb-plugin-fusionauth-oidc