You will need some speaker with a single 2 way concentric driver, i.e., the tweeter sits right in the crack middle...kef ls50, mofi, fyne, etc (where the drivers summing is no longer an issue at small distances).
Get a pair of mofi sourcepoint 8 and set them on stands either side of your PC desk.
(Speakers that are too small sound like trash no matter how close you sat or not.)