I can show you real example. In Nov I launched https://allgpts.co/ and https://osssoftware.org/ Both went viral in internet with millions of visitors.

Since I have ai agents, it was pretty relevant to place links to my agents on allgpts and it drove very good traffic. So allgpts served as a a marketing channel for my ai agents.

Same happened with osssoftware. Directories are one of the best and cheapest ways to win traffic.