The best tool for showcasing digital artifacts among the options provided is WordPress.
WordPress is a versatile content management system that allows users to create and manage websites, making it an excellent choice for showcasing and presenting a variety of digital artifacts, such as portfolios, blogs, and other multimedia content.
While Canva is great for designing graphics and visual content, and Trello is useful for project management and organization, WordPress provides a comprehensive platform for displaying a wide range of digital works. LexisNexis is primarily focused on legal research and information retrieval, which is not suitable for showcasing digital artifacts.