To enhance discoverability, optimize your marketplace by implementing effective categorization and filtering options. Enable advanced search functionality that considers attributes like title, artist, collection, and tags. Implement recommendation algorithms based on user preferences and browsing history. Allow users to follow their favorite artists or collections and receive notifications on new releases. Collaborate with popular influencers or curators who can bring attention to specific NFTs. By providing tools and features that make it easy for users to discover new and relevant NFTs, you increase engagement and satisfaction.