This is neat. Redditor BillyRayCyrax has compiled a bit of a list of stuff referenced in I'm Thinking of Ending Things.

When I read Antkind, I thought This book needs a wiki of its own. AND I WILL BUILD THAT WIKI. AND IT WILL BE A SUBSECTION OF BCK! AND PEOPLE WILL CONTRIBUTE TO IT FOR YEARS TO COME! AND I WILL HAVE ACHIEVED SOMETHING WITH MY LIFE! And obviously I haven't done that, but it's still a good idea.