For close nose to nose fighting;The Chi sao or sticking hand technique of wing chun will have you in when you first see that in action.
Once the set moves are mastered and you can flow around others energies and feel the difference between bluff ,attack and the spaces left between to attack up you then go free style and then blindfolded if you wish to further the practice.
Start off left handed and  static footwork then goes right handed then with footwork then two handed with set moves then two handed free style then single handed blindfolded then double blindfolded then double handed freestyle.
It allows you to feel faster than you can think in close quarters.You feel the point of balance continually shifting . IT builds contact reflexes into your forearms.
Once your left brain analytical side has all the moves and all the limits all learned and you have trained them in,you can practice free and then your right hemishphere comes into the equation and you can be in the zone without pre thought .