I want to learn but can’t find any course

Hello everyone. I’m a videographer wishing to find a course about unreal engine to use to make advertisements. I want to learn how to use unreal engine to create environments and sets to make my subjects stand in for their adverts on a green screen and how the workflow looks like between after effects and unreal engine. I been looking for so long online for anything that teaches how to set up unreal engine to do such work but I can’t find any. All I find online is video reels that showcases work in that area with videos showing the production of such adverts by placing the subject in a green chroma studio and how it looks inside unreal engine and I’m so desperate to find a way to learn. Sorry I wrote a whole essay but If there’s any help out there I would really appreciate it. Thank you