The short answer
Start with problem-led content and direct participation. Answer real questions, show the product solving a narrow pain, and send people to a landing page that matches that exact problem.
Answer
How do I market SaaS with no audience?
Market a SaaS product with no audience by borrowing existing attention: search for communities, questions, comparison threads, founder groups, and problem-specific conversations where the buyer already spends time.
How Wally helps
Wally turns your product and company URL into audience hypotheses, channel ideas, reply drafts, landing page angles, and daily tasks so marketing starts before you have a following.