You can probably try a Jaboticaba or Sapodilla, I have not grown a Jabo yet but from what I hear they do excellent here in 9b, and can tolerate a little more. You will have to protect them most likely on those very cold nights. My Hasya sapodilla has proven to be excellent for cold tolerance, we had nights of 25F and it didn't seem affected at all. Maybe I am just lucky with cold tolerance, but it hasn't produced anything and I am probably gonna put something else in its place. I would probably go with Alano because a lot of other people have stated that Hasya just doesn't produce well sometimes. It can be hit or miss. Good luck though!
The problem is, zone 9b in Florida is very different than zone 9b in Europe. In Florida, you've got cold fronts that don't last very long and then you're back to +16C or much higher. In my zone 9b, we can have many consecutive days with temperatures close to freezing or slightly below, with daytime temperatures not exceeding 6 or 7C. Also, winters are wet in our Mediterranean climate so we have the problem of cold wet roots. Also, in my area, the north wind is a big problem.
All of my passion fruit vines completely die during winter. Avocados grown from store bought fruit also die to the ground and so do cherimoyas.
But I'm still experimenting. I've planted white sapote, Surinam cherry and strawberry guava this spring and I intend to try to get them through the first few winters by protecting them and then we'll see what happens after that. I will also try Mexican avocados when my seedlings grow big enough for planting.
Btw, all of the things listed survive with no issues on my large covered balcony in town, but planting them out in the open is a completely different story.
In our area, there's plenty of citrus, figs, pomegranates, loquats, persimmons and jujubes. They really thrive here so for us, other things are more interesting.