I think if you do a search using the search feature at the top of the page you will find hundreds of threads on which is the best truck for whatever RV. An almost weekly question asked by people just starting out and "which truck" is really subjective. Ford, Chevy, Dodge and we start a long, long thread on why my truck is the best
Start with a google search of "can I tow this" and you will find several calculators that will help you decide if what you have will work or you need a 3/4 ton.