I currently have a desert goby pair housed with three peacock gudgeons , two banjo catfish ,two bumblebee catfish and a otto pleco. Fun tank desert gobies are definitely the most active fish in the tank.
I am thinking of these species. Obviously not all will fit in the tank. Panda garras are a 100% addition though. I was thinking 2 other species and the shrimps/snails
You could do white clouds with stiphodon and rhinogobius.
This would mean you keep the water temps at the upper limits of a white cloud and the lower limits for the stiphies and rhinos.
Looking at the Vietnamese White Cloud, Tanichthysmicagemmae, would allow you to keep a cooler tropical tank.
I’ve had a lot of gobies and nothing beats desert gobies for comic relief...their face and antics are hilarious. They can handle a wide variety of temps and conditions