This 100%, the Merc adventurer is by far the best garb in NV imo.
Any merc is also good, but charmer tends to cowboy hats or bandanas imo.
Veteran would look good in Boones hat too but again favours more a mask imo.
Grunt or doctors fatigues would be the next best I suppose.
Armour black combat or leather would be the best suit in ageneral sense.
Otherwise take the bullet roleplay true blue NCR and wear NCR armour to match.