Here are some of the best
dual monitor stands for desktop according to PC Guide:
AmazonBasics Premium Dual Monitor Stand: This stand is the best overall dual monitor stand according to PC Guide. It is durable, flexible, and versatile, and can hold up to 20 lbs of monitor weight in each arm.
Mount-It! (MI-1772) Dual Monitor Arm: This stand is the best heavy-duty dual monitor stand according to PC Guide. It is highly adjustable and can hold up to 32-inch monitors.
