https://www.amazon.com/AmazonBasics-Premium-Dual-Monitor-Stand/dp/B00MIBN71I

This dual monitor one is not much more than the Amazon basics single monitor one. But definitely cheaper than Ergotron. But as another said, Ergotron has a better warranty

Yeah if you want a dual stand version this is also rebadged ergotron

Amazon Basics Dual Monitor Stand - Lift Engine Arm Mount, Aluminum - Black https://www.amazon.com/dp/B00MIBN71I/ref=cm_sw_r_apan_glt_i_W4C0AGKGFYV5CKMGERDA