Ok...so here are some of ideas that I think maybe be really good or not so...

Here-

Izuku x Dokis

Basically Izuku and the Dokis (Literature Club is not creepy asf and no killing involved)

The storyline is taken place to where Izuku is transferred to a academy and meets the Dokis. However, Izuku is only here because he finished all of his work from Year 1 to Year 3 in a span of one month.

He will join the literature club as a therapeutic person for their troubles...

Examples: Natsuki's abusive dad

Yuri's tendencies

Monika's neglect

Sayori's depression

Izuku will still have OFA with a hidden quirk called "Bonds".

Bonds: It allows the user to feel sympathy and pour their happiness into the person of their choice.