Compreenshive Guide to Content Creation

Since Epic is using Paragon to push performance at best of engine, can You provide a comprehensive and deep guide to asset creation?

I mean something like this:

Main Character Geometry:

Main LOD:
Target Total: XXk Polys
Hair: Xk polys
Eyes: Xk Polys
Cloth: Xk polys
Weapons: Xk Polys

LOD 1:
Target Total: XXk Polys
Hair: Xk polys
Eyes: Xk Polys
Cloth: Xk polys
Weapons: Xk Polys

LOD 2:
Target Total: XXk Polys
Hair: Xk polys
Eyes: Xk Polys
Cloth: Xk polys
Weapons: Xk Polys

Something like that. Something that covers objects, characters, creatures, particles… with examples covering textures, geometry, number of characters on screen…