What BlackArcher said. We're going middle of August for the first time in 14 years, but this time we'll camp at the townsite. The downside of the townsite campground is no fires. The upside is you don't have to wash all your fabrics from campfire smoke smell when you get home!
It is nicely convenient to all things in town and also to anything that is open right now.
We used to camp at Crandell Mountain Campgrounds years ago when it was 1st come 1st serve. It was best camping my wife and I ever did. I can't wait for it to open up again in a year or two.
There are tent pads up at some of the lakes in the higher basins that are some of the most spectacular places I've ever camped. Anything on that Avion ridge loop would be cool, also the Alderson Lake campgrounds looked ok passing through there on the carthew alderson hike. Could be a heck of a hike to haul kids and gear in to though depending on their age!