I live 2 miles from CB Smith, and have stayed there twice. It is a nice, "newish" site. Clean (but non A/C'd) restrooms and shower houses, but beautiful surroundings. There is a water park onsite (pay separate), and well as little ski sessions on the big lake next to the sites. This time of year there are spots available.. just call before you go and don't rely on just the online reservation site.. Markham Park just north and west is also a nice campground, but there is nothing there to do except walk or ride bikes and fish.. No pool.. and the mosquito's this time of year are a little tough, lol.
Everglades Holiday Park shows campgrounds, but they are closed for camping. Not sure when they will reopen.
Topeekeegee Yugnee (TY) Park in South Broward is a very nice little park, but the spots are right next to the train tracks.. and the Metro rail runs a few times a day.. it's a quick running train, but still a train nonetheless.
There are a few others, but none I have personal experience with.. Best of luck and safe travels