I'd imagine that everyone is posting their pics on Twitter, so you could go there and look up "Anthrocon" by using the "search" function. :)

After each con I always upload all my photos to Flickr, then post selected ones here.
I wasn't at AC this year, though.
Have photos of you from past cons, though ( can't recall which ones ).

https://www.flickr.com/groups/anthrocon/ That's the Flickr photo group of Anthrocon. Individual users have to add them to the group, but it's a major start for anyone looking for Anthrocon photos. It would also help to browse those pictures, if for nothing else, to observe what keywords seem to be commonly used. Then search Flickr for those keywords, for any photos that may have been uploaded and tagged with said keywords but perhaps not added to the Anthrocon group (since obviously not everyone knows of it or uses it).

Twitter search might also help, although due to the nature of Twitter being generally a text-based service, doing a search will yield tremendously more basic text tweets rather than anything with a photo attached. I would recommend starting your search with keywords "Anthrocon", "AC2018", "Fursuit", and possibly "furry".