https://en.wikipedia.org/wiki/Internet_Speculative_Fiction_Database

"The Internet Speculative Fiction Database (ISFDB) is a database of bibliographic information on genres considered speculative fiction, including science fiction and related genres such as fantasy, alternate history, and horror fiction. The ISFDB is a volunteer effort, with the database being open for moderated editing and user contributions, and a wiki that allows the database editors to coordinate with each other. As of April 2022, the site had catalogued 2,002,324 story titles from 232,816 authors."

https://www.isfdb.org/