This is what I have been using with a magmount. It works, but isnt great. My iPhone 15 is nearly too heavy and it has fallen more than once. Hoping Proclip releases a better version soon.
I use this one. Magnet is pretty strong if you attach the ring to the back of your phone that’s included. I don’t have the second screen for the passenger in the car so I attached it to the plastic area to the right of the center display.