Responses
Only thing I think is similar is this I Will Politely Decline the Male Lead!
It has a Self sacrificing MC, magic academy setting, has a best friend kinda like Hestia, also 3 boys crushing on her.
Oh and golden haired elementalist is similar too but sadly discontinued
any recommendations with a sort of found family banter like this one and a self sacrificing FMC like this like the we die like beta AO3 protagonists