I don’t support any changes to the dragoon, which is one of the best unit in the game even with the range resistance range (and I used to only played portuguese)
A discount in vills cost could arguably be a good idea. Portuguese are very tight in food because they have to produce vills with 3 TC early {8 min) and all their unit have high food cost (musk 75, dragoon 90 hussars 120 and even cassador 80). The problem is that Portuguese don’t have a great early game, which means that they won’t have access to many good hunting spot because they will loose map control, even tough their TC could be used to secure some hunting spot.