Multiple Embedded Dashboards with Login Via Website

Hey All

I was wondering if there was anyone who had insights into embedding Power BI dashboards but the access to them would be done from them going through a Login Page on our website the then take them to a landing page with all the dashboards we have developed for them.

I am looking at different platforms to use as I have spent much of my time with both Power BI and Tableau but also checking others out like Metabase etc.

We are developing linkages to our clients data and creating the datamodel etc that backs up their dashboards but i want a seamless experience for them in relation to the dashboards so that its just 1 login via our website to then have the single sign on end up on a landing page with the dashboards we have created for them. Plus have it stylsed in our brand for the landing page etc

Ive seen quite a bit about embedding individual dashboards but cant find much or clear guidance on what I am looking to achieve

Cheers