Going to try for a new tow vehicle

I have a 17 3500 6.4 standard cab long bed, 10 mpg empty and will beat the crap out of riding in it.
Towing is what I bought it for, and it does it well. I rarely drive it empty. It currently has 15,000 miles on it.

Last year bought a used 19 1500 standard cab short bed it had 200 miles on it, it was a pleasure to drive, nice ride, easy on fuel.
But only light towing because it was a six cylinder, easy on fuel 23 mpg. Traded it on a challenger kinda regretting doing that with gas prices the way they are but the car is nice.