Small end pots between 5~7L, Gas lantern routine, I prefere it in ind-pred but it work well even with some sativas, do toppings like nugbucket main lining (or whatever technique you want to use), control the light & temp distance to avoid a vigorous internodal strech, feed them nicely, wait till them have 30-40cm to change the photoperiod, and you should end with compact plants, but please take care with humidity & airflow, you don't want any kind of fungus around them during flowering so prevention is the key here.
And this is all I guess maybe someone can give you more tips.