So, I made a thread here asking about where I could find a webm from a specific /gif/ thread from 2018, since desuarchive doesn't have fullsize webms/gif/images on /gif/ from that period.

The admin here suggested I reach out to the admins of some other archives, but as I cannot find that thread here now, I can't check who it was suggested I reach out to.

So i'm asking again: Where should I go, who should I email, etc to find a specific webm?