For non Apple iPad holders such as Android tablets we suggest the Joby Tablet Holder.

GripTight Mount PRO Tablet

For 7 to 10 inch tablets such as iPad mini or iPad Air Pro 9.7

https://joby.com/us-en/griptight-mount-pro-jb01394-mount-config/

Joby SKU: JB01394-BWW

In addition to the Joby tablet holder you will need to buy a 67 Designs' Camera Mount that attaches to the Joby tablet holder. This is a very cost-effective combination for Android tablet owners.

67 Designs does not have a commercial relationship with Joby and cannot endorse them per se, but we do have clients that use this combination and like the setup. We have used this in the company vehicle on trips and it works well.

Ideal for smaller tablets from: Asus, Samsung and other Android tablet manufacturers.

Do you have a generic Android tablet holder?

GripTight Mount PRO Tablet