Q.What Size And Type Of Container Is Used For Growing Tomato Plants?
What size in gallons of soil and what type of material is used in container?

Certified GKH Gardening Expert
This is a complicated subject with no simple answer. In short, container size will be dependent on the cultivar of tomato that you choose. Planting medium will be of your choosing, as well. Though, potting soil mixed with a good compost will benefit almost all cultivars.
For now, these articles will help: https://www.gardeningknowhow.com/edible/vegetables/tomato/growing-tomatoes-pots-containers.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/growing-tomatoes-guide.htm