https://thegreatestbooks.org/
"This list represents a comprehensive and trusted collection of the greatest books. Developed through a specialized algorithm, it brings together 549 'best of' book lists to form a definitive guide to the world's most acclaimed books."
I've broken the list down into smaller chunks so it's easier to browse; by 25 for the top 100 and by 50 for 101-500. This series of challenges will use the data as of the end of April 2025.
Other parts:
#1-25
#26-50
#51-75
#76-100
#101-150
#151-200
#201-250
#251-300
#301-350
#351-400
#401-450
#451-500