Looking for good tutorial for

Hey guys, I’m looking for a good tutorial that can explain clearly how I am supposed to prep objects (especially organize files and change formats) before putting them on cgtrader.

I know a few general things, for example clean meshs, UV unwrapped, rigging, subsurf (setting Simplify>Max Subdivision to 0) so the subsurf doesn’t apply when changing format I believe?.. basically little bits of info I picked up here and there.

I’m generally quite comfortable with aspects relative to modeling and have a decent and organized workflow, labeling etc, but dealing with files and formats and general “admin”, as I call it, gives me a headache and I can’t find a good clear walk-through.

P.S. Using Blender 2.81 so something using this version or 2.8 would be ideal.

Thanks for any help.