An oversight since I do like them and they are the earliest. A good nursery should be able to help you decide. They won't have a wide selection but what they have is probably what they have found does best for them and among their customers. One of the varieties they may have is Celebrity. It is a determinant variety which means that the plant will grow to a certain size and stop.
Indeterminate varieties grow like vines.
If you stake them, the stake may have to be six feet high or they may ramble all over the place. You can get much more variety if you are starting your own seedlings. The catalogue in front of me has thirty-nine varieties listed. The four varieties I'm planting were selected from that array. The earliest tomato I am planting this year is Glacier which is supposed to produce in 56 days.