Integration of Ping Identity with AEM publish for user authentication

[#1]

Hello Team

We are trying to integrate AEM live websites(2 publishers) with Ping Identity(OAuth) to enable the user authentication - authenticated users will have additional content access(custom solution within AEM is implemented currently to support user registration/authentication).

Please share some suggestion on integration approach.

[#2]

Additional Info: The authentication is enabled for individual pages through CUG and also the login page is hosted externally, the access token is provided in case of successful authentication to AEM.