https://www.gurneys.com/product/borealis-honeyberry
Passiflora incarnata- persian species hardy to zone 6
Musa acuminata × balbisiana Blue Java’
http://veganslivingofftheland.blogspot.com/2014/11/list-of-uncommon-cold-hardy-fruit-trees.html (tons of good stuff here)
Che, Mandarin Melonberry, Cudrania tricuspidata needs to be grafted onto osage orange rootstock
Citrus Poncirus, there are various crosses that have decent cold hardiness, the flying dragon trifoil crosses work well too
https://en.wikipedia.org/wiki/Cold-hardy_citrus
Mayhaw, a hawthorn used to make jelly.
lycium barbarum and Lycium chinensis both grow superwell
Kousa dogwood
https://xeraplants.com/genus/pittosporum/
Decaisnea insignis, dead mans fingers,
Wanderlust Nursery has tons of great stuff- https://www.wanderlustnursery.com/shop/products?tag=Cold%20hardy
Gunnera magellanica
Oca- Oxalis tuberosa
Ulluco- Ullucus tuberosus, near house as well
Mashua- Tropaeolum tuberosum, near house for wormth
Cranberry Myrtle- Myrteola nummularia
Chilean Wine Palm- Jubaea chilensis
Southern Luma- Luma chequen
Tree Dahlia- Dahlia imperialis
Ubajay- Hexachlamys edulis, this is a relative of surinam cherries
Tangerine Myrtle- Myrceugenia ovata var. nanonphylla
Tasmanian apple berry- Billardiera longiflora
Agapetes serpens- relative of blueberries, epiphitic
Drimys winteri, the winter’s bark or canelo

MIDYIM BERRY???
https://www.houzz.com/discussions/1849959/yes-there-is-a-tasty-zone-7-citrus
Citrandarin is a tissue-cultured clone of US-852, Stan McKenzie (McKenzie Farms). Panama John has been growing it.
Thomasville Citrangequat, Changsha, Ventura Lemandarin, meiwa kumquats