Dwarf, and pearl gouramis do fine in community tanks. They are moderately aggressive by nature, but that varies from fish to fish. Your most common community stock should do fine with them.
Just make sure your whale shark doesn't gobble 'em up.
I would say all Gouramis except a kissing gourami. I have owned Giant gouramis, Peral Gouramis and now 3 Spotted gold Gouramis and all do great in comunity tank.