There are so many different kinds of tomatoes which are used for so many different reasons. I'll try and refer to the particular kind in the recipes. Regular tomatoes are wonderful for burgers. Plum tomatoes are very good for sauces. Grape tomatoes have been a wonderful discovery. They invariably taste just next to home grown and are our choice for most salads.I'm not a gardener so I don't use as a rule all the different heirloom varieties, for example. I would suggest using the ones you like in whatever recipe.