Aeroponics!

So I recently have set up a 6x10ft grow room in my garage. I have an aeroponics system with 3 troughs coming off of the resovoir, each with 10 holes for net cups. so I can grow 30 plants at one time. I have 2 1000w hps over head, and 1 1000w hps on one long side, with basically no height restricitons, I can raise the lights up to about 10-11ft. anywho, even though i have so much light set up, im worried that, because the cups are so close together, if the plants are too bushy, they might not all recieve enough light. I have not started growing yet, the room is all done with intake, and exaust and everything, I was wondering if anybody knew what type of strains are good for growing close together/aeroponically? like if there were certain strains that grow more tall and narrow rather than bushy.

Thanks