Powerful Shove
Level 4 Fighter

Prerequisites: Aggressive Block or Brutish Shove

You can push larger foes around with your attack. You can use Aggressive Block or Brutish Shove against a creature up to two sizes larger than you.

When a creature you Shove has to stop moving because it would hit an object, it takes damage equal to your Strength modifier (minimum 1). This happens regardless of how you Shoved the creature.

Flinging Shove
Level 12 Fighter

Prerequisites: Aggressive Block or Brutish Shove

Increase the distance you Shove your opponent with Aggressive Block or Brutish Shove to 10 feet on a success or 20 feet on a critical success. When you use Aggressive Block, you can choose whether the target is flat-footed or Shoved. When you make a Brutish Shove, you also Shove the target 5 feet on a failure.