If you haven't already I would suggest checking out Denzel Curry. His songs are influenced by Raider Klan and Spaceghostpurp and some of them have a bit of a trap sound, and his flow is pretty nasty. You can listen to his first album here:
https://soundcloud.com/denzelcurryph/sets/nostalgic-64
Robb Bank$ is another south Florida artist that is up and coming that I really enjoy. His mix tape Calenders is pretty rad:
http://www.datpiff.com/Robb-Bank-Calendars-mixtape.337240.html
If you want something a little more mellow, Flatbush Zombies, Pro Era, and the Underachievers are nice.