I'd actually start with the state wildlife agency. Years ago, my wife talked me into taking her to Maui with friends. I arranged an axis bowhunt while I was there. The glitch that would have nixed my hunt if I had not checked ahead with Hawaii, was Hunter Education. Although I'm a hunter ed instructor myself, and all states honor the certificates of other states, there was a process.
I had to mail in a copy of my Hunter Education certificate and some other documentation for the state to validate. It took them 2 weeks and then sent me a validation letter that I could use to purchase a license. Had I not done my homework ahead of time, I would have been disappointed when I arrived and could not buy a license.
I also thing state wildlife agency biologists can be a good resource for "where to hunt". These guys have a finger on the pulse of game populations across their state.
One more consideration is emerging regulations. I know there are new rules in our state concerning areas where CWD has been found. There are issues transporting game out of CWD areas. So, be sure you understand the regulations in the state you will visit and come prepared for issues like this.