Multi Tenant Data Isolation With Identity & Entity Framework

Question

I'm looking forward some good plugins and github sources to build Multi-Tenant Data Isolated structure for application.

There are multiple companies having thousands of users. Each company have their own database and associated users stored in there tenant database with Identity.

Everything is managed by Entity Framework in data access layer.

I have found a resource but that's not enough for me, suggest your views.
Finbuckle.MultiTenant - Docs