You'll need a brake controller and a weight distribution hitch.
Your next decision will be if you want a tent style popup, an A Frame or a light weight conventional trailer. Each has its own advantages. If you want to accommodate lots of people, the tent style will provide you with the most space. If it's just two of you or maybe a family with one or two pre teens an A Frame or light weight will probably be O.K. If you're tall you need to consider whether you'll be comfortable in a shorter camper. I was surprised when I first stood in an A Frame - I'm 6'-6" - because I can comfortably stand up except at the very ends, which is where the bed and dinette are so I don't need to. I did, however buy a Rockwood high wall model for the higher (normal counter height) counters.
Finally, all other things being equal, the lower profile of a popup or A Frame do make towing much easier when compared to a light weight conventional trailer.
Tim & Linda
2015 Open Range Light LF297RLS Fifth Wheel
2013 Ford F150 EcoBoost w/ max tow