https://www.amazon.com/VIVO-Articulating-Pneumatic-UltraWide...
A heavy bedside table would support that, or you can get workstation ones like this but in some cases you actually need a PC as a counterbalance:
https://ae01.alicdn.com/kf/HTB1To31LXXXXXclXVXXq6xXFXXXK/Sim...
It's still a project-in-progress but this is my sit/stand/recline setup - https://imgur.com/a/IwOTOpz