I have had these in mind for a while but for some reason (ie, trouble writing it or not having seen the series) I couldn't write them. So here they are for you! If you decide to pick one of them feel free but please message me so that I can look for it when it's up! (Message me when you put it up and please credit the idea to me) I will add more as I come up with them. Can be yaoi or het. (No femslash right now because none of them are girls)
Harry is Matt (Death Note)
Harry is Izaya (DRRR)
Harry is Fran (KHR)
Harry is raised by L (Death Note)
Hiei is Harry (YYH)