You know how 3D printers print stuff to improve itself?  I've just done that with my laser cutter :-)
Nothing fancy, just a bracket to hold the smoke assist fan at an angle.

https://www.thingiverse.com/thing:3370541

FYI: Smoke assist fans are placed towards the front of the laser cutter to create an air flow towards the back of the laser cutter so smoke would get sucked up by the Exhaust Vent instead of lingering in the cutting area.