Maybe some of you actually know of good titles in this type. Girl in question is 12, but is more into stuff for somewhat older girls, so I would not recommend her very safe, kid stuff, as that will not interest her. Also, no faggotry please, the world is pushing that shit on all of us all the time, so it's best to not open another venue for it. Needs to be available in English, and the more obscure stuff I might not be able to get for her, I assume it is at least somewhat limited what books I can get here.
She is also into horror movies, if that helps.
Thank you to any of you fine gentlemen for any recommendations.
And nobody said anything about ecchi except one guy in a completely different chain recommending a single series he liked. Manga has a huge fanservice problem of varying levels, and he is being honest and I doubt he would fault you for saying "that's too much for this kid." We are almost all adult men here, not teen girls; asking for suggestions is going to be most of us scrapping the barrel for the least bad we know of.
This chain, however, has been guys calling "romance" in general erotic and pornographic. Which might be true on some deeper level of philosophizing, but its also impossible to prevent girls from consuming romance just out of natural predilection. There is no conceding, its appealing to what normal girls enjoy and finding a healthier outlet for it.
There is a difference between letting your son watch an action movie like Transformers and one like a bloody war film. Both are scratching the same natural itch, but one is more suited to his age and attempting to bar him from it does nothing helpful for his development while the other is rightfully too much for him to handle.
Which, again, is the entire purpose of this topic. Finding something appropriate for the age presented. Not conceding to "let her see a little fuckin'" but maybe find a series about characters having a wholesome romance.