Patrick AFB, Really nice, club house on site, covered moorage to I believe 40' or so, max open moorage is 45' including swim step and anchor pulpit. Good security, must have gate key to get past club house.
Pensacola NAS, LOTS of open slips, I don't believe there is a real limit on size, but must live within 100 miles in order to get monthly or longer slip rate. Nice access to Pensacola Bay and Gulf, you don't have to motor for a long time to get to blue water. Inexpensive too. Fuel available at 2nd smaller marina closer to Gulf.
MacDill AFB, limited to I believe 24 feet, and skinny water to get to marina.
Don't have any first hand experience with any others. Take care, Scot