Welp I shipped it Protag x childhood friend. it is
hmm who else can i ship? what about the yandere and the tsundere and if not that the yandere and the gal because if she ever leaves her for another then we have a nice death scene on our hands?
and if that doesn’t work I guess I could ship all of them together after all they must like each other to some extent considering there is a harem ending
and maybe if they are also self aware like the childhood friend they could consolidate under the confusion of why the protagonist is not going after any of time.