An aggro deck usually needs 812 one-drops and 812 two-drops
One of the first commanders that came to mind when I saw this was Rakdos, Lord of Riots
Erebos, Bleak-Hearted plays well with the sacrifice themes of the deck, but is a little awkward on the devotion side as if you are sacrificing things he may be hard to turn on
You obviously need some fodder, but what deck doesnt have a spare Clue or Treasure floating around these days
Theyre still playable, but Id much rather give a card as a bargaining tool to another player in order to ensure the board is fully wiped, before getting my best creature back again
This halfling will draw you a card and gain you 1 life every time that your opponents do this, regardless of whether theyre casting a Cultivate, cracking a Misty Rainforest, or casting a Demonic Tutor