Try the “Early Girl” tomatoes. Small, about the size of a small tennis ball, but meaty (not all that sloppy seedy crap) and tasty.
Buy them already growing or use seeds. I’ve had two of them grow to 15 feet lengths (one split into two branches, each about 8 feet long - had over 25 tomatoes on it).
A little delayed action fertilizer is like Viagra to them.
Keep watered and in the sun.
We had late blooming tomatoes into early December.
We had late blooming tomatoes into early December.