I just purchased a RAM-X mount to attach my phone to my yoke for ForeFlight and I believe it is the best option on the market. It holds very tightly and is movable in an infinite amount of directions/angles. They also make a suction mount but I wanted the yoke mount after trying suction mounts unsuccessfully for a long time. I can’t recommend this product enough. They make different size holders to accommodate phones or tablets and can be found on Spruce, Amazon, Sporty’s, etc..