[Article] An open source alternative to WorkOS and Frontegg

[xgp]

Make an article targeted at WorkOS, Frontegg, etc. SSO and Admin Portal functionality using the content from https://phasetwo.io/docs/sso/sso-without-auth

Focus on:

• Open source, based on Keycloak
• Can be deployed on-prem
• How to setup/store idp alias per organization
• Scalable pricing model (i.e. We democratize SSO)

[xgp]

• https://www.producthunt.com/products/workos/alternatives
• https://www.g2.com/products/workos/competitors/alternatives
• https://www.g2.com/products/frontegg/competitors/alternatives
• https://stackshare.io/workos/alternatives

[xgp]

Done in https://github.com/p2-inc/phasetwo-docs/pull/137