Generally, the bigger the container the bigger the plant.
I move most of my container plants thru the day to follow sun and for me anything larger than 3 gallons just gets to be too much.
I also move them into house or garage dark room to flower when I want to, and also to control environment better to avoid mold and P mildew.
They will get almost too big to move easily in even little 3 gallon containers.
Here are some pics of past seasons portable plants....