Library Genesis and Z-Library often have raw index mirrors for high-speed bot access.
To find direct directories of specific file types, use Google search operators: "index of" filetype:epub [Author Name] "index of" filetype:pdf [Book Title] index of ebooks high quality
: Effective ebook indexes require direct hyperlinks to the text rather than static page numbers. While tools for this exist, they haven't been universally adopted. Library Genesis and Z-Library often have raw index
[ ] Parent Directory [ ] 1984_- Orwell.epub [ ] Dune -_Frank_Herbert.mobi [ ] The_Great_Gatsby.pdf index of ebooks high quality
Google has de-indexed many of these directories due to DMCA requests. If a standard search for returns mostly dead links, you need to pivot to specialized search engines.