How Did You Find Your First Paying Users for a Recruiting Platform?

I built a platform designed to help recruiters, and I’m now looking for a few early paid users who can use it and share honest feedback.
What are the best ways to find recruiters willing to try an early-stage product? I’d also appreciate advice on how to pitch it without sounding overly salesy.
For those who have launched a B2B SaaS product, what outreach channels or messaging worked best for getting your first few paying customers?