Entity-Framework-Core

https://metanit.com/sharp/entityframeworkcore/1.2.php

https://www.nuget.org/packages/Microsoft.EntityFrameworkCore

В открывшемся внизу в Visual Studio окне Package Manager Console введем команду:

Install-Package Microsoft.EntityFrameworkCore.SqlServer

Install-Package Microsoft.EntityFrameworkCore.Tools

Install-Package Microsoft.EntityFrameworkCore.Design

Install-Package Microsoft.Extensions.Configuration.Json

Смотрим ветки v2-v4

https://en.wikipedia.org/wiki/Entity_Framework

https://docs.microsoft.com/en-us/ef/