Electrocuted, burned alive, crushed
One of the most famous death scenes in cinema, and King’s debut novel, Carrie uses here telekinesis to take out her bullies. After the whole pigs blood prank, she uses her powers to lock the doors of the prom, set the firehoses and sprinklers going, causing equipment to short and a fire to start. She then locks them all in.
She also goes home and crucifies her mom with kitchen utensils. So there’s that too.