In the world of Propane there are two types of "Taps" High and low pressure.
High pressure is over 100 PSI Low pressure under 1/2 PSI.. DO NOT CONFUSE THEM
A grill with it's own regulator needs HIGH pressure
A grill designed to connect to a RV's low pressure port needs LOW pressure.
Beyond that I will leave it up to others. And no I can not list models of the latter.. And models of the former are too many to list. (Any portable Propane Grill save those SPECIFICALLY designed to be used on an RV's low pressure port)
most of the ones designed to use Low pressure are also designed to attach to a bracket on the side of the RV. I truly do not want my grill that close to the RV.