So you want to use your tablet a second display for increased productivity? The CTA Digital Monitor Mount for tablets can help. It is an adjustable solution that holds tablets such as the iPad Mini 4, Galaxy Tab S, and Nexus 9. It has two hinges for orientation, angle, and placement adjustments. The frame fits VESA 75mm or 100mm holes on the back of your monitor.
The Display Monitor Mount for Tablets lets you use your tablet on the right or left side of your monitor. You can get it for under $25.