Is there any library with generic templates ready to use c#?

Question

In the past I worked with an ERP (Apache Ofbiz) that already had common entities. I did not need to reinvent the wheel. He used the entities that existed there, and adapted them when necessary. But this ERP only works with Java. This ERP is based on Len Silverstone's The Data Model Resource Book.

I would like to do the same in .NET (Core) and Entity Framework (Core). Does anyone know of any ERP, library that allows me to use entities already created in .NET?

If it was possible to implement the model below with Entity Framwork thanked them for helping me. This model is from this book that I am referring to.

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