I agree with GG here, bigger pots in photos are best for me, especially outdoors in mass.
I also only grow a state legal limit of 6 per person / 12 per house max this year I had 9 or 10 I think, and few of them were just small pot stuff,
My main legal 6 were 100 gals as well, Build my own soil of mostly compost / perlite / ewc / and other kelp/bone/fish/blood meals etc, They take care of all the work, I just go by every couple hours and make sure they're happy, keep tying them down/up where needed, and keep an eye out for herm/def,/disease and mold and after the initial labor of preparing everything, the bigger pots are so much easier to maintain. My native soil is too much clay to plant in ground without excavating, so I use fabric pots, the 100 gals hold enough moisture where I've only watered thoroughly about 4-5 times total The rest of the time the rain has been coming perfectly on schedule this year.
As for yields, I cant give you numbers, I dont even guess until they're dry just because its too unpredictable, for example, having to cull a herm last week would've affected any yield guess significantly... So no point in it for me really other than just a fun guess. In the past I've gotten anywhere from 2 lbs on a bad year from 6-12 plants up to 35+ on a good year, sometimes even more.
Theres a limit to height Ive found though, its becoming a pain to drag a ladder around/set up scaffolding and check the tops thoroughly, so finding that medium of least maintenance / best quality / most yield is key for me. Heres a pic for scale from last week of one of my gorilla glues that I havent topped (got 3 experimental plants that I havent topped the main shoot on, just side branches, I've been bending them over here and there but not much at all, mostly just a slight curve to them to expose more branches to the west/east/south sides of the plant.) This one is the shortest of the 3 the others are about a foot or so taller. This was taken sometime last week and they're in their stretching period now.
To OP: Have you given any thoughts to what strain(s) you want to grow? Would be interested to hear your thoughts... What is your local climate like btw? If I havent mentioned already btw, photos over autos every day of the week...