User blog comment:B214/Volume 21 info & spoilers/@comment-27707085-20160131032747/@comment-26821288-20160131060446

Well, someones answered your question. This Wikia is not for such things as fanfiction/s, unfortunately for you. With this said, however, there is a DxD-Canon-Related-Fanfiction-Wikia (although, I am pretty sure that you can post there also non-canon-related-DxD-fanfiction, but that is something that you would probably need to ask the admin over there), which you can go to by clicking here. Personally, I am, myself, and some more people are, themselves, posting there one or more than one, fanfiction/s.