I use this one from Skyreat; https://amzn.to/2Qml4Cq Fit, finish, usability, quality of materials is top notch.
Is on Amazon for $21. Get a neck lanyard from a tradeshow or whatever and secure it to the base of the iPad holder and voila, you get both hands back when you're not flying.
The FlightDeck Mavic 2 Tablet Mount is compatible with the Mavic Air, or Mavic Pro remote. Aerospace aluminum knobs provide a fully tool-free experience so you spend more time flying and less time setting up. The Production Grade DJI Mavic CrystalSky Mount features Stainless steel TiltLocks...