Not the main commentator, I think farmers market or the weekly markets that happen in few places in cities are good and depending on when they have been imported asian/turkish stores can have fresh veggies(debatable), or if you are in a small town you could actually have a small local market nearby.

"Deutsche Piccolo" tomatoes from Kaufland taste quite good. They are also the most expensive ones from there. But honestly the cheaper ones aren't worth their money, might as well buy colored water.