Aron isn't great for making a nickname out of. Which is fabulous if you want a name nobody can shorten.
Famous people named Aron:
Actors Aron Tager, Aron Eisenberg, and Aron Kincaid; comedian Aron Kader; Olympic judoka Aron Bogolyubov.
Singer Elvis Presley's middle name was Aron, though it was pronounced like Aaron, not in the traditional Spanish way (AH-ron).