What bleach to use for dark brown hair?

I know this is a big no no but all the salons are closed and a girl is desperate at this point🥴

I wanna dye my hair some crazy color but every single one of them I’ve looked at, I’ve come to the conclusion that I’d have to bleach my hair before I can move forward with dying it whatever color.

I know nothing about bleaching hair, I did use to box dye my hair but that was over two years ago soooo I need some help😐

And yes I know this is a stupid thing to do, I’m aware of that and the risks.