Okay, here me out! What if the way you died in your last life is what your quirk manifest as in your next?
Some are really simple like-
Bakugou his quirk explosion- he died from an explosion in his last life, or some sort of bomb.
Ashido died from an acid spill of some sorts, maybe consuming a dangerous chemical.
Denki, electricity like getting struck by a lightning bolt or touching an electric wire. It can be even more creative like a electric generating exploding near him or something like that.
Kirishima, was killed by Dwayne.
Urauraka. died from falling or jumping of a cliff or large building.
Dabi, was probably burnt on a stake cause the village thought he was a necromancer.
Tokoyami, was killed in a dark place, that’s why his quirk is a literal shadow.
Some are alot harder and you have to be more creative.
Sero, maybe he was taken by a mafia boss and was hanged to death by tape. Or they taped him to a chair before finishing him off?
Hawks could’ve been a pilot, killed in a plane crash of some sorts.
Deku got fucking K.O’d and died instantly, such a anti-climatic death he didn’t get a quirk. God said no.
Toga is really hard trying to account for all aspects of her quirk. Maybe was stabbed by an impersonator and bleed out to death? Who knows.
ANyways just something I was thinking about while sketching, I think its a cool concept.