Which mail for selling theme accounts on Insragram?

Hey guys, just started investigating about the world of buying and selling theme accounts.
I’m totally a newbie and don’t understand what email to use as the credentials for the theme account I want to create.
Any experts that can recommend me something?

Thanks guys!

make a new gmail? that’s what I do. And i’ve done it like 30 times

With your name?

name of the account i am making or just random email