Marauder (Barbarian Subclass)

Warcry
At 3rd level, when starting to rage, the Marauder lets out a loud warcry, all non-allied creatures within 30ft that can hear the warcry make a WIS save, if they fail, they become frightened of the Marauder.

Imposing Physique
At 6th level, the Marauder can add it's STR modifier to Intimidation rolls.

Threatening Aura
At 10th level, when a creature within 5ft of the marauder attacks, you can spend a reaction to force it to make a WIS saving throw, or become frightened of the Marauder, and stop the attack.