Everyone in this thread is approaching this as if OP explicitly mentioned that they were trying to distribute this material through ‘grey-legal’ pirate channels; all they said is their torrent is novel.
So, OP, giving you the benefit of the doubt: (Or, alternatively, for those who stumble upon this post and may wish to archive “legal” data: )
If you’re trying to sincerely archive something that you believe nobody else has access to, and you aren’t just blatantly posting copyrighted material, the Internet Archive will host links to your torrent(s), provided that they are verifiably sound. Even though it isn’t usually thought of as a place to find torrent files, the Archives have a lot of content available through both F2P and P2P, and if your torrent/file is related to other content already hosted there, it could be part of a collection, which would also increase visibility.
If it is a piece of potentially lost media, please contact the Lost Media Wiki project (I believe they have a Discord), and they will be more than happy to help disseminate the content.