There is a new Power BI Embedded sample application called Contoso Sales. The best part? The source code is available out on GitHub! Adam walks you through the sample application.
Contoso Sales Embedded Demo GitHub Repo
https://github.com/microsoft/Power-BI-Embedded-Contoso-Sales-Demo
Contoso Sales Embedded Demo
https://contososalesdemo.azurewebsites.net/
Old Warehouse embedded demo (logins are embedded on the sign in page – just click on the user name text box)
https://pbiewarehousedemo.azurewebsites.net/warehouse-summary
Power BI Embedded Playground
https://aka.ms/pbijs/
What is Power BI Embedded
https://docs.microsoft.com/power-bi/developer/embedded/azure-pbie-what-is-power-bi-embedded
Embedded analytics with Power BI
https://docs.microsoft.com/power-bi/developer/embedded/embedding