I agree with everything said so far. That is, ATG squats, wide-stance squats, lunges (leaning forward)/reverse lunges, and sumo deadlifts will all build solid glutes.
However, a frequently ignored, but incredibly effective exercise for your glutes are barbell hip thrusts. They provide almost laser-like focus on your ass, and improving your hip "driving" motion will also contribute to a stronger deadlift.
However, a frequently ignored, but incredibly effective exercise for your glutes are barbell hip thrusts. They provide almost laser-like focus on your ass, and improving your hip "driving" motion will also contribute to a stronger deadlift.