What kind of tomatoes should I plant for variety?

I want to grow 4 – 6 tomato plants this year. Last year, I only planted 1 variety of grape tomatoes and that didn’t work out. I never got quite enough to even make a salad even though I had lots of plants and they were producing well. I was told the problem was that I should have planted a wide variety of tomatoes so that there was always something coming in.

So what is a good mix of tomato plants that would keep us supplied? I live in Central Indiana if that makes a difference.

If it makes any more difference, I am actually allergic to raw tomatoes, so I don’t eat them much raw. Once they are cooked, whatever enzyme I can’t handle breaks down and I can eat them. So I mostly cook with them, though my husband and daughter both eat them raw.