Actual GVWR if your trailer is typically less an issue for trucks these days as is the vehicle cargo capacity. Go look on the sticker in your door jam. It will tell you a weight that the occupants and cargo isn’t to exceed. Take this weight, subtract how much you and your family weigh, subtract any extra cargo (bikes, coolers, grills firewood, etc) that may be in the bed and the result is the max tongue weight. Now compare this weight to the listed tongue weight of the trailers you are looking at, realizing published tongue weights in brochures are usually dry weights a good bit lower than actual loaded weight. 12% of trailer GVWR is probably a better number. As an example, we bought a Grand Design 2800BH last summer. It’s published tongue weight is 604lb, dry weight is 6400lbs and GVWR is 8000lbs. My actual loaded tongue weight measured on scales was 1080lbs. I bought a Ram 2500 4x4 diesel with a 2380lb load capacity. With a 4 adults, a camper top and a bed full of gear I’m right at the published weight rating for my truck but my truck exceed the weight of the trailer and tows and tracks Spend some time reading and learn about vehicle and trailer weights, weight distributing hitches etc and take what the dealer guys tell you with a grain of salt regarding whether your vehicle is suitable or not. Pretty much when you pull out of the dealership you will be on your own.