https://growingfruit.org/t/jujubes-our-new-adventure
Is an excellent thread on jujubes. Having tasted a few varieties myself, I’d rather have one good sugarcane than many Li’s.
Have you tried a muscadine before? From the store, they remind me of having a kiwi like sourness. They are bigger than grapes but only the seeded varieties are actually hardy to 7 (supposedly). They’re delicious but I personally prefer seedlessness.
Pineapple guava will likely survive but it may be difficult to fruit. Definitely let us know how it goes (success or failure) is how we all learn together.
I second the vote for a caroline- I had one I grew this year and it tastes like a “good red raspberry”. 85% of what I have bought from the store is plain, but the homegrown red/yellow raspberries really taste great.