Basically most campers that are 9' or less long are considered short bed campers, but a lot of them will fit all the way forward in a long bed, unlike the pic above. If they have storage or a generator mounted down in the wing/overhang area then they may be "short bed only" or sit back like the pic above.
Bottom line, anything from a pop up to a double slide 11' camper will fit in the back of the truck. Depends what your "must have" features are, and what the wife will live with, lol!
Many variables in what a person is comfortable with hauling.
I'd recommend finding a couple you think you like and get the "real world" weights from a forum like this and experiences/mods required to haul it.
I wouldn't have had a clue what my camper weighed before buying it based on the stated weight online and on the vin tag without researching it here