Regarding a hitch, with a short bed a slider would be your best choice, auto slider if you don't mind the weight, or manual slider otherwise. Pick the brand, just make sure the jaws wrap or close around the king pin.
Another option instead of a slider would be the Reese Sidewinder pin box. Less weight since you can use a lighter fixed hitch. Works automatically. Back of the pin box can't hit the tailgate or truck bed sides.
But then if you can be a little more careful when backing up, then a fixed hitch will work also. Sometimes it may require a couple more times jockeying back and forth. Max turning angle depends on the truck's distance from back of the cab to the rear axle (C-A), Ram is the least, GM the longest, with Ford very close. The other variable is the fiver cap design, many are designed to achieve greater turning angle specifically for SB trucks. I've been towing fivers with short bed trucks for almost 30 years and use a fixed hitch, never had truck to fiver contact and never found a site I couldn't get into.
Not all short bed trucks have smaller fuel tanks than the brands long bed trucks and today's SB crew cabs have wheelbases longer than regular cab long beds of years ago, so ride comfort isn't a big issue.
