Hi …
Good tuts on Unreal in Udemy like:
https://www.udemy.com/unreal-engine-4-for-architecture-fundamentals-course/learn/v4/overview
Also check https://www.lynda.com/ for any tut from “Craig Barr” like these ones:
Unreal: Introduction to Lighting
Unreal: Architectural & Industrial Visualization
Cheers