Avid readers often spend more time choosing books than reading them. A recommendation engine could analyze past reads, genres, and ratings to suggest tailored options.
Build a simple web app that lets users input their favorite books or genres. Use existing book APIs to fetch recommendations based on this data.
Monetize through affiliate links to book retailers or a premium subscription for deeper analysis.
Start with a basic form that takes a few favorite books and returns a list of recommendations. Expand later with more sophisticated algorithms.
The biggest risk is competing with established platforms like Goodreads.