I am trying to find a tutorial where an organization is asking us to authenticate their users using SAML. Today we federate in social logins like github and google using OIDC. This is the same thing except its some_corp that uses SAML instead to OIDC.
The diagram that I like is the first one on the following page.
SAML Configuration (auth0.com)
The one where out web-app talks to Auth0 using OIDC and Auth0 is talking SAML to ta federated SAML IDP.