There's An AI For That is a directory organized around the tasks people want AI to perform. It helps you move from a problem description to relevant tools, even when you do not know a product name.
Find tools by the problem
Look for applications addressing a specific task, such as editing content or processing documents, instead of browsing a general list of AI products.
Understand competing solutions
Explore related tools to see how an existing need is being served. For a SaaS idea, this can reveal alternatives and approaches worth comparing.