I could only suggest talking to the people. You need something suitable to your location and for what purpose you have. Selling directly? Converting to sauce? Growing methods? They might have info that could save you some trouble in the long run.

I usually set out some of the Florida Beefsteak variety and some cherry tomato plants. I have found that success depends on water and fertilizer..here is Florida the sandy soil will not hold water and it means watering daily unless it rains and the soil is poor in nutrition..I set them out in raised beds of good imported topsoil then fertilize every three weeks during the growing season.

By the way, most tomato plants are perennials..I have had a few frost free years and the plants kept bearing until a frost finally killed them.

I like the Beefsteak and Big Boys. There's one called "Early Girl" that I haven't seen in a while.

I suppose it depends what you are going to do with the tomatoes, can, eat fresh, how long you want a crop.

For slicing tomatoes, and table tomatoes I choose early girl and better boys.

6-8 plants seem to do the trick.

some folks like the grape sized tomatoes, I find it sort of time consuming to pick them, etc. your birds might like them.