Curate, connect, and discover
Dean and Sam from supernatural are like the black Brothers except Regulus is the one who got away and left Sirius behind this time and idk how i don't see more people talking about it.
They are literally Regulus and Sirius with some things slightly changed, like Dean (Sirius) having the need for approval and blind obedience instead, or Sam (Regulus) being the one who wants to get out, who questions the orders and eventually finds his way out.
But a thing that doesn't change is how the older brother sacrifices his childhood so the little brother can have one, and the way they would die for each other but still fight like little kids, the way is so clear that the only family they can really trust is each other, that never changes, "always his little brother" in every universe.