Best monitor arms for Mac (or PC) external displays - 9to5Mac

Monitor Arms and Monitor Mounts | Kensington

Desky Heavy Duty Single Monitor Arm (24lbs+)

HUANUO NITROGLIDE™ Dual Monitor Stand for 13″–40″, Premium Dual Monitor Mount with USB, Height Adjustable Monitor Stand for 2 Monitors, VESA Mount with Clamp/Grommet Base, Holds 26.4lbs per Arm, HNDS7

HEMUDU Dual Monitor Articulating Desk Mount Arm Stand - Vertical Stack Screen Supports Two 13 to 34 Inch Computer Monitors with C Clamp

The Best Monitor Arms

How to: Assemble Monitor Arms | Vari

Quick Setup and Feature Highlights of the Dell Single Monitor Arm (MSA20)

Level Up Your Desk: 8 Simple Ways to Improve Your Dual Monitor Setup