The Monoprice Workstream Single-Monitor Desk Mount is my pick for best monitor stand. Clamping to your desk, it gives you back more desktop space, while providing strong support for large monitors.

If you hate the idea of sacrificing desk ... monitor arms ages ago, and it's made a world of difference in my health and happiness. That's why I recommend something like the Herman Miller Jarvis ...

Monitors can be placed in portrait or landscape orientation. Heavy Duty C-Clamp - Mounts to the back of your desk (up to 3.25” thick) via a heavy-duty C-clamp or optional grommet mount.