C# .net core MVC Repository pattern

Hello.
I have a C# .net core MVC repository pattern question with concerns about removing a couple of the “new…” from one method and the constructors’ within the controllers. I am not able to correctly replace the new with the code from the repository. This question is for a small portfolio project.

I have more than this “new” but after receiving some help, I hope to work on the rest on my own.