Jay, and son and DIL, please check out my post from last year at
https://permies.com/wiki/272602/Permies-Poll-fruit-trees-homestead. for a look at what my small yard contains.
My area grows sub-tropical to temperate very easily, (also a few tropical if I place them in the right areas with canopy ; a few cool temperate if I place them facing north against brick or stone walls and protect them when under 3 years). I've put their Latin names for anyone who is curious as I realise some may be unfamiliar.
Of course what you choose will depend on your State/Country/local area, but the point I am trying to make is to check out varieties that can add a continuation of produce, rather than just one option and create areas with under storey shrub, vine and ground cover plantings.
I have a small (just under 600 sq mtrs), sloping suburban permaculture demonstration backyard, showcasing layering of many plants grouped in their deliberately created microclimates.
As an example my apple tree has 5 different varieties of apples grafted to a crabapple stock and grows in the coolest spot of the yard. I chose varieties that don't all mature at once giving fruit over 3-4 months. My banana varieties extend the growing season over 8 months and grow in the hottest area where they get maximum sun, by surrounding them and interplanting them with other edible shrubs and sweet potato ground cover and mulch it warms and protects the soil.
Grafting is a wonderful tool in a small backyard. I have used it on my citrus, plums, peaches, cherries and apricots. I had a few dramas early on finding which varieties were most tolerant of their positions and had to change a couple of positions to better suit my berries, but now all seems to be in sync and thriving.
My biggest challenge is climate change and water which over the years I've managed to adjust my block to, but the weather changes are fairly rapid now and it is ongoing work in progress. I have some wonderful people in our local permie group which we have formed into Permie Pods, they come to help and see how to manage small areas, even balcony growing is taught. As long as you can grow something it all helps ourselves and our communities.
I've been a permie, before permaculture really became a thing and studied with Bill Mollison in the 1980's so as you can see I'm getting on now, but I must say permies has been an invaluable place for learning new ideas, different ways of viewing a sustainable life, and meeting some pretty fabulous people along the way who share their knowledge and caring.
When you make your list of what the locals in your area, look at what else can grow on or under, you'll be surprised at how much yield you will have.