Does anyone know anything similar to this?

I mean, depends what you are referring to by "similar". If you want a possession story where the MC is a mature, motherly figure/an actual motver to other characters in a historical setting, "a wicked tale of cinderella's stepmom" comes to mind (if you can't find it with that title, just look up cinderella's stepmom). I never finished it, but I really liked it and def want to reread it all at some point.

Yes same way how you describe it.

They can even be a mother in law like this.

I already read that one I haven't finished it too