FIFINE Microphone Boom Arm, Low Profile Adjustable Stick Microphone Arm Stand with Desk Mount Clamp, Screw Adapter, Cable Management, for Podcast Streaming Gaming Studio-BM88

My setup is very similar to yours, only I have my monitors on an arm that lifts them up a bit and keeps the underside clear so I can have my boom arm underneath the middle monitor, so I can extend it out from there. You have very limited space here, so I think the only place you can put it while you still have the monitors on the desk is clamped on the left side, or, you could shift everything just a smidge to the left so you can turn your PC counter clockwise so the glass is facing you so you have room to clamp the mic on the right side, which would be much more comfortable, imo. Edit: this is the arm that I have, btw https://a.co/d/0j6hvZZ4