Hey guys, appears someone was nice enough to inform me that there is a german wikipedia page all manga releases in Germany, so although I won’t be able to buy them all in my country, I know what is likely to be around or not.

Thank you for all the recomendations, even if I can't find all of them, they all spark some rememberance of other manga I used to read at that age too, so this was a very successful hunt.

Cheers!

Ps: I agree with reid1, Bunny Drop does start off as innocent, but I don't think I'd give any kid it to read, adopted or not.