What are you planning on saving

I will try to keep one plant of tomato, tomatillo and anything else I want to save in the conservatory, or it will be cross pollinated I think. I have several types of each growing, so how far apart do you think they have to be? Tomatillos can probably go in two greenhouses and the conservatory, but I have more than three types of tomatoes lol

We shall see what else is available to save