Answer: I would think that any plants grown as annuals would do fine there, and some may even be perennial in that environment. So vegetables like tomatoes, beans, eggplant, etc. (the heat-loving vegetables) should do well. I am not familiar with the weather there, especially at high altitudes. If you are growing bananas, then it must be mild! Some cool-weather crops like broccoli might not thrive there during the hot parts of the year--but may do well in winter. The timing and duration of any rainy seasons will affect what you can plant.
The Cooperative Extension Service has an office in Puerto Rico; the phone number is 787-833-2665. They would probably be your best source for advice.
Q&A Library Searching Tips