HUANUO Dual Monitor Wall Mount | Gas spring system | For up to 32-inch displays | Height-Adjustable/Tilt/Swivel/Rotate | $79.99 $40.99 at Amazon (save $39) This wall mount will securely support two monitors of up to 17.6 pounds, enabling easy repositioning and reorientation, and freeing up a whole bunch of space on your desktop too.
I cannot over-emphasize how great monitor arms are, especially in this day and age of huge displays. I made the change last year after decades of dealing with monitors eating up space on my desktop, and it is so much better.
Seriously, there's just no overstating it. Which is why I'm going to seriously urge you to take a look at this Huanuo dual monitor wall mount that's $40.99 on Amazon for Black Friday, 49% off the regular price.
There are a lot of monitor arms on Amazon—I'm going with the Huanuo here because that's the brand I went with for my own setup, and they're ace.
They're easy to install («Hassle-free» might be overstating a bit, but as long as you know which end of a screwdriver to point away from you, you'll be fine) and come with 75x75mm and 100x100mm VESA mounts for monitors 13 to 32 inches in size. «Integrated cable management» means there are channels along the arms to run all your wires so you can keep things looking neat, although I can tell you from experience that's entirely optional if «keep things looking neat» isn't high on your priority list.