(fallen london stamps by just found this on a trawl. seems like it could be a possible imgur alternative for some folks? https://catbox.moe/
might message them to confirm hotlinking is allowed. I think it is based upon the phrasing but it's good to confirm it
edit: would be amiss to not mention where I found it, which is someone's link hoard on SpaceHey https://blog.spacehey.com/entry?id=696241