Business to Consumer Idenity Scenarios
Usually eCommerce or SAAS applications which have end users (consumers) as customers and the application typically used OpenID Connect as a protocol to communicate with Auth0.
Users are created and stored with a Database connection (username/password) which they can then later use to log in, or alternatively users can use a social connection such as Facebook, Twitter, Google, etc to log in. Passwordless connections are also common with B2C.
The following is a list of articles on this website which will help you to implement this scenario: