I grow Valiant, Beta, King of the North.... Have made wine with Valiant and King of the North...with lots of additions it is quite drinkable....will try Beta next.
Also on the Red scale have grown Frontenac as of late.....No wine from them yet [only juice to add to other wine]...It is hardy to -30*F...living on the edge with that one...we have been to -27.9*F twice this winter....these I let hang on the wires and time will tell if they will truly survive and produce annually.
Neighbor has Worden and Beta has luck with them...his wine was a little foxy with both but good.
On the white side Hardy to -40 we have Louise Swenson, Prairie Star and Baltic Amber growing [young]....not enough grapes to make a batch with yet.
As for tender varieties growing on panels that get laid down in winter...have had great luck with Edelweiss [great for eating, planting more this year] Swenson Red [pink juice] These are hardy to -30 but I pamper them by laying them down. Both have produced well this way with the juice blendedin other wine. Have grown Canadice and Kay Grey with survival luck and small production...but will replace them with Edelweiss this year due to space.
Have tried a few other tender varieties, but over the years they have been replaced.
Hope this is helpful