Well, so which would you want have or make...? and which power do you wish to have? one that make your body stretch? smoke? light? shadow? ect....
Here are types of Devil's fruits:
Paramecia... are the ones who affects the body of the eater
Zoan... allows you to transform into an animal
Logia... it is commonly characterized by giving its user the ability to turn into a natural element
I would have one that controls elements... that would be a logia one
and you... ? XD