Now that you have successfuly scaffolding Identity into an existing project and impleneted authentication you can further explore the topics below:
- For further review you can visit Introduction to Identity
- Visit the following documentation for information on Identity model customization in ASP.NET Core
- Microsoft Identity Platform . Microsoft Identity Platform allows users of your application to sign in using their Microsoft Identities or social accounts. Several components that allow this to work are OAuth 2.0 and OpenID .