In your climate, just about any tropical will do well outdoors year round. Finicky species like Fukien tea are just a little more of a challenge.
Ficus are hard to beat though as far as care and ability to produce a nice plant fairly quick. You should be able to grow killer plants there. My favorite is the narrow leaf ficus. Ficus retusa and microcarpa battle for a close second. Barbados cherry would be nice if you enjoy blooming and fruiting plants.