Most bigger fish also happen to be more active fish because they can afford to swim out from the rocks in the wild and not fear automatically getting preyed upon.
Like Rcreations mentioned earlier, it just depends on what your definition of a "large fish" is. A 3 foot Golden Pilot Jack is a large fish, but IMO so is something like a 6" Threadfin Butterflyfish.
For a 72gal bow, I would do something like a Dwarf Lionfish, a hardier Butterfly like a Raccoon, and a Marine Betta.