We know that galactus gives a tiny portion, insignificant to him, to his people to make them his herald.
my question is, since its stated that it is a tiny portion, almost insignificant to galactus, can his power cosmic run out? I mean, can he potentially give hundreds of beings the power cosmic and have 100's of heralds? He'd never have to worry about a few betraying him or fighting him since he's unaffected by power cosmic, but that's not the point. With that many heralds he would always have help to take out things that dont warrant his direct attention, small villains, planets trying to fight back, etc, he'd almost never starve with that many heralds helping him find planets and attacking them.
Who is the most powerful person galactus can turn into his herald, it has been stated by Galactus himself in one of the comics, the one that involve DC as well, that superman with power cosmic was his most powerful herald ever.
can galactus, for example, turn an extremely powerful being, like thanos, into his herald, thus making him even more powerful, especially if he gives him more power cosmic, I mean, obviously he can but who do you think would potentially be the most powerful herald if he does strike a bargain with galactus?