Path of the Titan

With your rage all attention turns to you. Your strength and endurance make you a hard target to kill while you stand stalwart in the face of all that oppose you. 

Meat Sheild

As bonus action make a grapple check against an enemy. While that enemy is grappled gain +2 AC against opponents you can see and they attack with disadvantage, and your movement speed becomes zero.

Unarmored Rage

While Raging your unarmored defense becomes 13 + Strength modifier + Constitution modifier and you gain the following reactions to a missed melee attack:
-offhand attack if opponent is within 5ft
-attempt to grapple if opponent is within 5ft
-attempt to push opponent to ground if within 5ft

Focus on Me

While raging all opponents will prioritize attacks on you

Tough to Kill

Once per rage instead of an attack action you can recover health equal to your Constitution modifier + your barbarian level

Hard Target

Improved "Tough to Kill" where you can regenerate  2x Constitution modifier + Barbarian level  once per rage. This also imposes disadvantage on all attacks against you until your next turn.