Mono/Dual/Triple Monitors Arm stand (HG2)

Good morning. I am trying to setup my office desk to help with my back and neck issue and looking for a Mono, Dual or Triple Monitors Arm stand that mounts on the desk please. ( I am more interested in the triple monitors mount stand that can hold 17 to 32 inches monitors, but if that is not available, anything monitor stand will be helpful ). It looks something like the photos attached. Thanks in advance. Regards.