First off; Welcome
I don't know the southern state very well so I would suggest picking up this book:
Arizona Backroads & 4-Wheel Drive Trails Covers 75 trails across Arizona, including areas near Phoenix, Tucson, Sedona, Flagstaff, Grand Canyon National Park, Florence Junction, Apache Junction, Bullhead City, Kingman, Lake Havasu City, Parker, Jerome, Prescott, Crown King, Wickenburg, Oracle, Tusayan, Quartzsite and Yuma.
Fifty trails are suitable for most stock SUVs. Includes GPS waypoints and ATV trails. Enjoy