How about a lychee?
10,000 raccoons can't be wrong!

I believe Lychee is not for zone 9...
What about a loquat tree?
I have not tried but maybe a persimon or a nectarine/peach tree?

I had the same question a year ago and went on a fruit tasting journey. Ended up with a sapodilla, tastes like a tropical pear, medium size tree.

Peaches are tough to get fruit from in zone 9 due to lack of chill hours.

goldenpond is one of the fruit tree experts here. perhaps she can chime in.

my peach (flordabelle) produced about 100 peaches this year, its third in the ground. so, z9 and peaches works just fine... pretty tree, too.

We have a wonderful Myler Lemon tree and the fruit is just wonderful....or if you did not want it so big I would get a Key Lime Tree. We have both and both are high producers.

Hey there since I am related to pepper dog wanted to let you know he was logged in and this was me writing. Remember that the Key Lime can freeze though if it gets too cold. But we always can count on the Lemon. We only had the Key lime 2 years and it was an awesome producer!! It got caught by the frost last year, we still have it but we should have covered it better and did not.
We actually are into gardening for the first year this year, check it out if you like below.

Here is a link that might be useful: my pool container garden

Persimmon

Pomegranate

Loquat - Eriobotrya japonica 'Variegata' looked interesting with exceptional fruit

Fig - Celeste is best for zone 9 and the Brown Turkey does very well also

Florida bred peach or apple

Olive - beautiful trees that grow well in Central Florida

happy_fl_gardener - where are you with your expertise ? The Queen of fruit trees needs to chime in and add to my short list ! Check the GW archives for some photos of her amazing success with fruit trees .