Make the save, then make it again. Parry the first shot to a safe area, get back to a set position fast, and react to the rebound with a second save.
A keeper faces a shot, parries it out, and a second striker follows in to hit the rebound, which the keeper must recover to save. Emphasise parrying the first shot wide and to safety, exploding back to the feet in a set position, and staying big for the second save. Feed the shots quickly to build the recovery habit. Rotate the shooters.
Fork it into your private drills, then change the animation, adjust positions, swap equipment, or drop it into a session block.