The vertical stack method takes up only the desk space of one monitor that way. And looking up and down a little bit is far easier on your eyes and neck than having them side by side. Just be sure any dual monitor stand you get can handle the weight of two of these. Also be sure the VESA adapters you are getting are for this HP 27f monitor.
https://www.amazon.com/HP-Widescreen-1920×1080-Monitor-Response/dp/B07K4QDNVX

