В следующей в версии Rider будет доступна поддержка Entity Framework!
https://blog.jetbrains.com/dotnet/2018/04/06/entity-framework-support-rider-2018-1/
https://blog.jetbrains.com/dotnet/2018/04/06/entity-framework-support-rider-2018-1/
The JetBrains Blog
Entity Framework support in Rider 2018.1 | The .NET Tools Blog
A fresh build of Rider 2018.1 EAP just landed, adding Entity Framework support! Rider adds functionality to enable migrations, add a migration, get migrations, update the database and more! On Windows