Can you filter by "major works only"?
that's kind of what P800 (notable work) is doing, but you can try some approximations to "major work" with "has both an English Wikipedia page and a Goodreads link":
?work wdt:P50 ?author ; wdt:P577 ?publicationDate ; wdt:P8383 ?goodreadsID . ?article schema:about ?work ; schema:isPartOf <https://en.wikipedia.org/> ; schema:inLanguage "en" .
that's kind of what P800 (notable work) is doing, but you can try some approximations to "major work" with "has both an English Wikipedia page and a Goodreads link":