I made a Reddit bot [0] that continually scans comments across the entire site for mentions of science fiction and fantasy book titles. It uses a dataset of book title/author pairs that were scraped from the Speculative Fiction Database, a compendium of all known science fiction/fantasy literary works.
If an SFF book title/author pair is detected in a comment, the bot searches YouTube for an audiobook of the mentioned title, then replies with a link to it should one be found.