little space stuff

Hi, I'm a regresser! I just found out. I wanted to try writing a little/regression book. like little x character caregiver or character little x reader caregiver.. I thought I would try with you guys giving me who you want the story to be about.

(If you want a character out of these Fandoms private message me and I'll see if I can do it)
Fandoms/animes i know:
my hero academia
attack on titan
chainsaw man
(I'll add more the more I know)