2 peppers per large container or 1 each to smaller pot

Tis the time of year where I tally up all my seedlings and figure out how to arrange them all. This year, I have seedlings of about 7 different varieties of scotch bonnet or other chinenses (MoA red, orange, and yellow, allan boatman, a "chocolate" scotch bonnet, a scotch bonnet scorpion cross, and a mild seasoning pepper), but im thinking i will likely grow maybe 5 (I have other people who would want the scotch bonnet seedlings, they are the most in demand).

Last year I had only two plants, and grew one each in the planters in the photo (I use them standalone, not stacked like the photo). I got more than enough peppers from 2 plants grown that way (at least 150?), so I am happy to have fewer peppers per plant if I can fit them all in. I'm wondering if it would be feasible to fit 2 plants per planter of that size and sacrifice only some yield quantity, not quality or anything. Based on inside dimensions, theyre about 15gal I think.

Would it be better to use the above planters with 2 plants each, or to give each one its own smaller container? I have also all standard nursery pot sizes up to #7 Nursery pots (not enough of this size for all though – i intended to use some of these for Bells). I know that peppers like to hold hands when planted in the ground, but in containers its more ensuring each plant has enough room for its root system. On the other hand, the volume of one of the large planters is greater than the combined volume of two #7 pots, which are my next largest solo option for (some) of them.