Many catfish are cooler water fish than Clown Loaches. Optimum place to check out their requirements is
www.planetcatfish.com
L-134 is a good choice for that temperature, they can handle it up to 82*F, per planet catfish.
Panda Cory tops out at 75*F, so is not even a marginally OK species to mix with fish that prefer the uppermost 70s to low 80s.
I did not list any cats because in this case the question seemed more directed toward upper tank/dither fish, not more bottom fish.
I would avoid Cories for all but the younger Clowns. Most cats have spines that makes it dangerous for a predator to eat them, and you might lose both Cory and Clown, if the Clown thinks he could eat one.
The 'Cory' that handles the warmest temperature (and is usually available) is
Brochis splendens.
38 tanks, 2 ponds over 4000 liters of water to keep clean and fresh.
Happy fish keeping!