Hello and welcome. Congrats on the new rig. A good place to check out rv parks is
Reviews of RV Parks and Campgrounds - RV Park Reviews, they are usually pretty accurate. We also use
CampgroundGallery.com. They are technically nationwide but have mostly reviews local to nc. The nice thing about this one is it has member uploaded pics as well.
In terms of your son Making friends, don't worry about it. Kids tend to run around and make lots of new friends while camping.
I hope you all have a wonderful trip with lots of memories.