This is what I use both at home at and the office: HUANUO Dual Monitor Mount You can tighten the joints with the included tool to "lock" them in place. Both arms are on a single plane so it helps keep the monitors level with each other, and there's a fine height adjustment screw for each mounting plate as well. The whole assembly is attached via clamp so you'll need a lip on the back of your desk. There's also a version that clamps through cable cutout holes instead of an edge if your desk is flush in the back. Unfortunately the closest you can get to the wall with this is about 6 inches due to the elbow-like design. I don't mind the 6 inches of separation, even on my work desk which is more shallow than my home desk. It still feels close to the wall and gives me some space to cable manage. (Edit: spelling, grammar)