Get into the corner of this column and fence, and then aim at the top right corner of the small hole in the wall.

The video was taken in 64 tick, but the smoke is essentially the same in 128 tick (it goes slightly deeper, but it's pretty inconsequential). If it's that important to you, the smoke is slightly better on 128 tick when the crosshair is positioned on the BOTTOM right corner of the same hole in the wall.