Cassleberry Chess Club usually hosts a tournament once a month at the Cassleberry Recreation Center. This is usually early in the month and on a Sunday. It's been 15 minute rapid the last few months, January's is a quads tournament being held on Jan 12th, they have a FB page and a Club page here on chess.com where they normally post information, and the tournaments can be registered for on https://www.chessregister.com/events usually $20-30 for registration.
The Volusia County Chess Club club in Daytona holds a tournament once a month usually on the third Saturday of the month, at the Sunshine Plaza mall in Port Orange details are posted to their Facebook page it is $40 entry they don't put it up on chess registration websites, but are considering it.
Chess in Schools does the Monthly Chess challenge at Stetson University in DeLand this is normally the Saturday before the Volusia County Chess Club event can be registered for on. https://www.kingregistration.com/ and is $50
There are also others in the area from Jacksonville to Miami most of then have FB pages where they post information, and many can be found on chess registration websites. It would be great to get more people going to these events!