The coolest Republican is Adam Kinzinger - who most of the party considers to be a RINO...
On the other hand, the most beloved figure in the party is a twice-impeached ex-president who was so bitter about his loss he refused to expect it and tried to have his cult invade the capitol of his own country. Less cool, and more concerning/disturbing/psychotic.
What about Schwarzeneger?
Saw an interview with Arnie recently and thought of how good of a President he would have been rhetorically at least. He's exactly what we need right now to bring people together.