Among the options for auth providers is Dex, which relies on OpenID Connect to enable authentication for other applications. It’s a popular choice because it comes with connectors to allow user authentication against other third-party identity providers. Dex supports protocols such as Lightweight Directory Access Protocol (LDAP) and Security Assertion Markup Language (SAML) as well as platforms such as GitLab,... - Source: dev.to / about 2 years ago

I noticed that Zoho, just like many other CRM solutions tend to focus on sales alone, and doesn't fit a subscription model very well. So once you have a bunch of deals in the pipeline, you'll want to close them as 'won'; However, if you have customers on subscriptions with expiration dates, renewals, etc. One way to manage that is to pair zoho or hubspot with an application that supports existing customers,... Source: about 2 years ago