+1 for Luxury RV Resort! If you’re looking for a nice clean park close to the beach this is perfect.
I’ve stayed at Gulf Shore State Park too and its another great option. Its only a mile or so away from the beach, but has a lake. It’s massive – like almost 500 RV spots, but its still hard to get a reservation so start looking now! Also, bring a bike as the park is huge and they have a nice trail system and its a quick way to get to the beach.