A multi tenent example using a single database schema
Multi-Tenant Application - Sudheer Sandu
Build a Multi-Tenant App With Entity Framework Core & ASP.NET 7 - aspnano.com
EF Core Multitenancy For Your SaaS Applications - Milan Jovanovic
dotnet add package Microsoft.EntityFrameworkCore.SqlServer
dotnet add package Microsoft.EntityFrameworkCore.Design
dotnet add package Microsoft.EntityFrameworkCore.Tools