What works here
Porcelain and ceramic tile is the default. Humidity does not affect it, it stays cool underfoot, and it does not care if the slab sweats. Luxury vinyl plank is warmer and quieter, and good ones handle moisture well. A cheap one telegraphs every imperfection in the slab. Engineered wood is possible with the right underlayment and a moisture test first. Solid hardwood direct to slab is a gamble we will talk you out of.
Where flooring installation goes wrong here
Two places. First, skipping the moisture test. It is cheap before you order material and ruinous afterwards. A slab that reads high lifts an adhesive, or cups an engineered board, within a year. Second, skipping the flatness check. Large-format tile and long planks telegraph every hollow in a forty-year-old slab. Neither is negotiable under the Florida Building Code for a job that has to pass.
Test the slab, then level it
A moisture test before ordering, and a flatness check after. Large-format tile and long LVP planks are unforgiving of a slab that undulates, and self-levelling compound is far cheaper than lifting a finished floor. If the carpet is coming up, look for terrazzo first: it may already be the best floor in the house.