Check out the 3 top links
HERE, a good bit of info there on some commonly kept freshwater puffs (plus brackish and saltwater ones if you ever want to look at those).
I'm too lazy to grab a pic of each of these but here is a list for you if you'd like to do some googling
I was going to only include ones that aren't on the above link but thought you might like having the names all in one place. Hope this helps a little?
Bronze Puffer (Auriglobus modestus)
Golden Puffer (Auriglobus silus)
Bornean Red Eye Puffer (Carinotetraodon borneensis)
Red Tailed Red Eye Puffer (carinotetraodon irrubesco)
Red Eye Red Belly Puffer (Carinotetraodon lorteti)
Striped Red Eye Puffer (Carinotetraodon salivator)
Dwarf Puffer (Carinotetraodon travancoricus)
South American Puffer (Colomesus asellus)
Abei Puffer (Monotrete abei)
Hairy Puffer (Monotrete baileyi)
Tetraodon cambodgiensis/Monotrete Cambodgiensis
Fangs Puffer (Monotrete cochinchinensis)
Palembang Puffer (Monotrete palembangensis)
Arrowhead Puffer (Monotrete suvattii)
Brown Puffer (Monotrete turgidus)
Common Puffer (Tetraodon cutcutia)
Dubois' FW Puffer (Tetraodon duboisi)
Fahaka Puffer (Tetraodon lineatus)
Mbu Puffer (Tetraodon mbu)
Congo Puffer (Tetraodon miurus)
Cross River Puffer (Tetraodon pustulatus)
*Edit* Would also like to reiterate that tank size/dimensions would be greatly appreciated so we can help you find what would work, as well as knowing if your water is soft or hard.