19 cold emails to Vancouver real estate agents. 0 replies. What channels actually work for non-tech buyers?

Day 14 building Stoopwriter, an AI content tool for solo realtors. 19 cold emails, 0 replies in 72h. Channel mismatch — agents don't read cold email. Pivoting to Reddit + LinkedIn DMs + IH launch (this). If you've sold vertical SaaS to non-tech buyers, what actually worked?