I think OP is asking for a Barb subclass since this is posted in the Barb section. Back to the topic at hand I would suggest the Battlerager subclass to pair with Unarmed Fighting style. While it requires you to be a Dwarf (the DM can allow a different race) the synergies it provides with Spiked Armor is pretty fun. You successfully grapple something and they take 3 damage. And while Raging you can attack with your Spike Armor as a Bonus Action (the way I envision it is you giving the enemy a nice big hug while grappling them lol).
I want to make a professional wrestler. What subclass allows me to monopolize the most on my 1d8+STR(+Rage) die?
Fighter Battle master for wrestling moves
I think OP is asking for a Barb subclass since this is posted in the Barb section. Back to the topic at hand I would suggest the Battlerager subclass to pair with Unarmed Fighting style. While it requires you to be a Dwarf (the DM can allow a different race) the synergies it provides with Spiked Armor is pretty fun. You successfully grapple something and they take 3 damage. And while Raging you can attack with your Spike Armor as a Bonus Action (the way I envision it is you giving the enemy a nice big hug while grappling them lol).