I use this one. It works pretty good holding onto the phone vent and if you use the included magnet it holds onto the phone pretty well. I use a thin TPU case on my Galaxy S10 and stuck the magnet sticker on the inside of the case, slightly towards the bottom so it doesn't interrupt wireless charging or NFC. I do keep it on the vent to the right of the screen because it sticks out a little too far to have it behind the steering wheel. So my phone is a little further away but it's still fine.