How to define a self hosted open source alternative to Azure MyApps?

Question

Single sign-on technology

Good afternoon.
I want to launch a kind of portal/dashboard for the company, in which it would be possible to collect links to all services, for example, mail, chat, and so on. And what would SSO work in conjunction with LDAP, for authorization.
I don’t even know how to formulate the question normally :)
I found quite a lot of various authorization services in principle, for example, Authelia, keycloak and similar ones.
But I can't find any dashboard.
Of the commercial ones, the closest are Azure MyApps and Okta.
But I can’t find a ready-made free open source.
Maybe someone has picked up something similar?