Auth0 to Auth0 SSO Intergration

Hi All, Hope you are doing great. I’m using auth0 as my base provider. I have configured SSO SAML with other providers like OneLogin, okta…etc but I struct in this scenario. The Scenario is both my provider(auth0 1) and other side provider(auth0 2) also same, How Can I integrate ?. Now I need to allow other side provider(auth0 2) users to login in my provider(auth0 1).