I have an idea beefsteak tomatoes are probably best for burgers, but what variety produces the most abundant for canning tomato sauce, stewed tomatoes, salsa dip, etc...
Here are some top choices for sandwiches and burgers:
https://www.gardeningknowhow.com/edible/vegetables/tomato/sandwich-tomato-varieties-good-slicing-tomatoes-to-grow-in-the-garden.htm
For canning, here are some questions to think about:
https://www.gardeningknowhow.com/edible/vegetables/tomato/tomatoes-that-can-well.htm
I waited to long this yr. to plant my beefsteak tomatoes but have plants coming up and need to know what the leaves on them look like. I have 4 growing close together. Had 6 plants last yr. Very healthy plants now!
If you do an internet search for Beefsteak tomato foliage you will get lots of photos. Here is an article about growing them:
https://www.gardeningknowhow.com/edible/vegetables/tomato/growing-beefsteak-tomatoes.htm
es this and how to correct it The tomato plants are in large outdoor pots with plenty of sunlight. My peppers, cucumbers, and cherry tomatoes are growing fine.
Ultimately, it is a calcium deficiency, but can be caused by several things. Here is an article that will help:
https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-blossom-rot.htm
This article will help you to grow tomatoes to their potential:
https://www.gardeningknowhow.com/edible/vegetables/tomato/growing-tomatoes-guide.htm
This link will take you to a free ebook download:
https://blog.gardeningknowhow.com/ebooks/essential-guide-to-growing-tomatoes/