Something that would at least carry skis and hopefully a kayak or canoe.
Skis are easy.
Several rack manufacturers make carriers that attach to your spare tire. Most can carry bikes, too, or take an attachment that will. But long loads such as canoes or kayaks are tougher to do. I think your best bet is going to be a Canyon Bed rack. They make a tower-type rack that fits onto a Class 2 receiver hitch on the back of a vehicle.