If you have storage room for the winter, the rebar cages are always the
best. One cage is about a 5X5 piece of rebar that you will bend into a
cylinder. Cut off the last wire at the bottom so you can have stakes at
the bottom. Then you will occasionally gently pull the branches through
the rebar to support the plant in as many places as possible. They are
rusty, and ugly, and will stain your white T-shirts, but they will take
a large plant without toppling, they last forever and need no labor,
and harvesting is a breeze. The only problem I have with them is that
I should have cut them into 7X5 pieces, because occasionally a cherry
tomato will climb well above 5 feet.