Ram Mounts are good, and I’ve used them to mount amateur radio gear in the past. Pro-Clip is what I’m currently using for GPS and phone mounts. You pick the mount for your vehicle and add the device holder for the electronics.
Holy crap that stuff is the real deal. While I hate taking my phone out of its case, for a long trip?? In that thing? It’d pull it and put it into this mount.
The mount I have in my Subaru Forester fits my Galaxy S10+ in it’s Otterbox case.