I would suggest getting a towing and trailering guide (similar to this) for the vehicles you are considering. I recently ran all the numbers for our tow vehicle and it was a lot closer than I would have thought just looking at the headline number.
https://www.gmc.com/content/dam/gmc/...wing-guide.pdf
When running the numbers note that tongue load is included in the GVWR.
Some models, when loaded with the driver, passenger and maximum tongue load, may exceed the maximum Gross Vehicle Weight Rating (GVWR) or rear-axle weight rating for that vehicle, which is not permissible.