Destin. Been going there with the family for 12 years. It is a traffic mess but you will be good later in August.
We stay about 12 miles east of Destin in Miramar Beach at a resort called Tops'l Beach Resort, right next to Jerry Jones's house and a State Park called Tops'l Preserve, good location and not as crowded. May want to check out Navarre Beach, a few miles west of Destin but a close drive in.
The drive is brutal for us but the reward is excellent
Funny. We are at Tops'l. Tennis court 10 feet from our condo.... love it.