I had the same dilemma; but really was given only one choice;0). My local nursery only carried one grape variety, and it is simply called "grape tomato".

I too am curious if there are other varieties, great question for this group. They don't often miss!!

g

I bought heirloom seeds only and they had a Tiny Tim brand. I have no idea if it is good or not. I have a healthy plant, but no fruit yet. It is upside down and has a stalk twice the size as the ones in a pot.