Instead of telling you what you can tow, I'm gonna show you how to correctly figure this out. This way a salesman won't sell you something you really can't tow.
You need to know more about your trucks capabilities than just my truck can tow x lbs. (I learned this the hard way). Most TV are limited by their payload. To find out your TVs true towing capacities then you need to go weigh it. Load the tv up with all occupants, pets, and cargo that will be in it when towing plus a full tank of fuel and then go weigh it at a local scale (
www.catscale.com). Weigh each axle on a separate scale pad so it will give you a breakdown of front and rear axle weights individually and a total weight. Take the total weight and subtract it from your Trucks gvwr to get your available payload. Take the scaled Truck weight and subtract it from your Truck gcwr to get your adjusted towng capacity.
Now understand you will never tow an unloaded or dry trailer. Those numbers are somewhat irrelevant. You can either add the amount of weight of cargo you will tow to the dry weight (this is heavier than you think as most add 1000-2000 lb of gear) or simply use the tt gvwr to do your calculations. Next understand that the tt loaded tongue weight needs to be subtracted from your available payload. The loaded tongue weight is typically 13-15% of the loaded tt weight.
I think you need to be looking lighter. I can tell you that my TT weighed 5700 lbs the day I drove it home from the dealership (we weighed it at the catscales). That was with propane, battery and dealer installed options already on it. My family of 3 (DH, 6yr old Dd, and myself) have added 1300 lbs. Per the scales our TT now weighs in at a healthy 7000 lbs. Our tongue weight is right around 1000 lbs as this tt handles better with a heavier tongue weight. We traded an SuV tat was rated to tow 9100 lbs but only had 810 lbs available payload after buying the TT because it handled so badly. I will never again tow at or over capacity after that scary white knuckle experience. I really learned the true meaning of you can tow it but can you stop it! Even cars and SUVs passing us would push and pull us all over the road. Best of luck to you.