All kind of websites....ecommerce, corporate, government, non-profit etc. I think we need to evolve old-school type web directories and make what I call discovery engine because we already have search engines.

For example we should think how we can evolve old directory like this one: https://wiki.archiveteam.org/index.php/Dmoz

Here is the new revived version of it: https://www.curlie.org/ but for sure something more sophisticated can and should exist.