3300 lbs is very light compared to most travel trailers. So just about any full size SUV's with a V8 engine could handle the job. (for instance almost all half ton pickup trucks tow at least 7500 lbs or more with a V8 engine) If you want a crossover SUV with a V6 engine you better look at the towing information in the owners manual to see what it says. Also, just as important may be the towing option. Without it you will have to install a tow hitch, wiring for towing, trailer brake control, and maybe helper springs in the rear. A vehicle with the towing option from the factory saves a lot of headaches.
Hope this helps!