My favorite Barbarian was a multiclass Barbarian/Rogue with the Urchin background, with expertise in deception and athletics, and the Tavern Brawler feat. She wore dresses instead of armor, and carried no apparent weapons.
When combat broke out against intelligent foes, she would use deception to pretend to be a non-combatant and let the enemy bypass her (some enemies even tried to protect her). Once behind the enemy lines she would move up to the enemy leader or spellcaster or stragglers, take out a sharpened screwdriver (improvised dagger), and start a rage/grapple/reckless-attack/sneak-attack rampage.
When combat broke out against intelligent foes, she would use deception to pretend to be a non-combatant and let the enemy bypass her (some enemies even tried to protect her). Once behind the enemy lines she would move up to the enemy leader or spellcaster or stragglers, take out a sharpened screwdriver (improvised dagger), and start a rage/grapple/reckless-attack/sneak-attack rampage.