I was right, your tomatoes look really healthy and I envy you for the yellow ones. I need to look around to see if I can buy some seeds as we've only had yellow cherry tomatoes and black as well, but not the big ones.
Blueberries we had some years back but did not resist. I don't know why.
I have grown mine from seeds that I got from Rare Seeds: https://www.rareseeds.com/store/plants-seeds/vegetable-seeds/heirloom-tomato-seeds
The big yellow ones I love, the smaller striped yellow ones are my daughter's favorite :) I also liked Raspberry Luana tomatoes the last two years, but this years crop doesn't seem to taste as sweet as before. They are the medium sized tomato that looks like this:
We always have 4 or 5 types but I'm not sure I know the English name of them. If you're interested, I can research them.
One of them is this, it's my favorite 😍
Coeur de boeuf