For Cap players on controller, need help !

So you know, with the new update, melee button can be used to continue doing melee damage without throwing the shield or triggering shield slam while being mid air (really useful against Strange or Magneto) So i want to change my controllers input for Cap but i have no idea how to make it as natural as possible. By default, the melee is on pressing right joystick, really not practical. Do you have ideas for this issue, where did you put the melee button on controller with this update ?