I’d say at least 2 to a pot. I’ve also seen higher ratios of females lately. Not saying that males won’t happen but the ratios are getting better. You do raise the odds by going three per pot but I wouldn’t go to 4 unless your ready for a feeding frenzy.
Also it’s up to you how many females you wanna work for the battle I think most are going to focus on one or two and I’d cull the males too. Unless you have the ability to isolate. If they pop you’ll have fun cleaning that pollen.