You didn't come off like you knew the answer, just FYI.
You probably want next gen of UX designers who are probably looking for work and if your product is actually good/revolutionary you can set some kind of new paradigm as to how to do UX in this new way. You know, people who are hyped about AI and new tools.
- Keyword research. What are people looking for.
- Content marketing i.e. blog posts, tutorials
- Google Ads
- A free widget, something to attract links.
- Cross posting interesting content to subreddits i.e. design
- Youtube - creating content or sponsoring content.
- Outreach - depends on your market but maybe linkedin.
- Buying high traffic websites and integrating the content into your own site.
Go communicate wherever they listen.