43” monitor takes up whole desk — thinking vertical side monitor on arm, looking for ideas

Just got this 43” LG monitor and it takes up most of my desk.

I’m thinking about adding a second monitor vertically, but I don’t think I have enough room to clamp a monitor arm on the back of the desk because of the monitor size and the window.

I’m wondering if I could clamp a monitor arm to the side of the desk and swing a vertical monitor in.

Has anyone done something similar with a big center monitor?

Looking for layout ideas before I buy another monitor and arm.