the Saddle Valentini isnt really a puffer, its a toby. They are awesome fish for the fowlr
aquarium. if you had them you couldnt have any inverts. here are some that are the first to come to mind that would be good for you.
saddled or valentini toby
dwarf angels (lemon peel, bicolor, flame, singapor, just a few)
hawkfish (longnose, flame, just to name a few)
bigger goby's (like diamond )
maybe some damsels
I would leave all butterly's, tangs/ surgons (tangs and surgons are same family but may be labeld differently) out as they need more room to swim
personally this is what I would do
papuan toby (personality and beutifull)
lemonpeel (dwarf) angel (beutifull yellow body)
flame hawkfish (beutifull red body) or m/f pair of clown
yellow tailed damsel (beutifull blue body)
diamond goby (sand sifter/ color/ personality)
six line wrasse (personality and color)
somthing along those lines....