What variant should I make a guide about?

I really want to write a guide about some chess variants to help out some people, but I don't know on what variant.

All of them, starting with the most popular

please make a guide about the emperor's tomb(one of the wierdest varients out there)

idk how to play

Ok, I will write one about it. By the way, since I have to get good at the variants to actually give advise, this will take a while