I'd try training it at this stage by tying it down or supercropping it if possible to get it in line with the others so the light is equal among them all. If that's not possible a gentle, repeat, gentle oscillating fan won't be bad but watch them for signs of wind burn like leaf curling or what looks like nute burn almost. Airflow is important above and below a crowded canopy like you're going to have. I'd be more inclined to put one of those fans under my canopy on a gentle setting pointing up to move the air under them. Stagnant air down low can lead to powdery mildew, mold and other crap in a packed room like that if your humidity gets too high. Lots of air movement and good tent exhaust goes a long way to help prevent it. Good luck with your flower cycle, looks like it's off to a good start.