Soils vary. Inquire locally. (Ideally you would sample your soil and have it tested, don't know if you have access to testing labs there).

citrus food is best for the citrus, avocado, and mango. Nurseries should have fertilizer marked as citrus food.
I'm not sure about the apple and cherry, but generally when you want fruit, not just leaf, you want a balanced fertilizer, not something to high in nitrogen.

Buddbud:

You will not get very good advice on fertilizing your fruit trees here. The soil situation where you live is unique to your area, and the best advice you could get would be local. Generally, the soils on small islands like the Bahamas are thin, often sandy, and sometimes over a coral cap. Alkalinity is sometimes a problem because of the proximity to the ocean.

You need to find a local expert who can look at your soil, analyze its needs, and advise you on the best way to proceed. Nobody can do that by long distance. Surely, there must be someone in your area who is also trying to grow fruit trees and has some experience, or an agricultural adviser with the local government who has professional qualifications.

Don Yellman, Great Falls, VA

Check the Florida or Tropical forum on this site.