This video is worth watching because she gives a quick review of about 10 of her mango trees fruits. Her Truly Tropical mango grove in Delray has what? 100 mango varieties? Chris (don't know her last name) also has other Florida fruit trees such as avocado and sapodilla ...iirc.
I see that some of her mango trees are about 15' by 15' and planted in a dense row. Planted to where the trees leaves/branches touch each other.