Fwiw I have maybe 10 varieties in Dallas. Where are you?
I’ve have a couple Giombos die on me, they seem a little tricky, but the fruit is worth it. Plain old Fuyu does really well here. I’d mail a soil sample to TAMU, forms are online, have a soil test done, $20, see what you soil is missing. Not everyone agrees with me but I do light fertilization the first year; otherwise I don’t amend the soil at all. I always cut back my trees to 3’, including the big ones from Edible Landscape and JFE. Best time to plant is Nov-March, February being ideal. A little water is needed in the summer or persimmons won’t grow.
Katie is in Canton, if you’re closer to Canton than Dallas then her recommendations would be better.
Jmo,