This sounds cool. If your focus is LinkedIn, you're going to want Sales Navigator for the advanced search features, list building, network visibility, etc. I did a quick and dirty search for leads with "content" in their title and "ai content" as the query, which shows ~1K potential leads. You'd want to spend more time refining your searches and iteratively building your list, but from there, you'd be able to reach out via InMail.
Yeah, lean into these folks' role as AI trailblazers, be prepared to address likely objections (probably about publishing control/security), and make it clear that you're asking them to share their experience (which will also help them position themselves as trailblazers). I'm optimistic for you.