Jobs at small Atlanta companies nobody posts about - what worked for you?

Two small Atlanta employers told me they are hiring but have not posted yet. They prefer people who can start within a couple of weeks. What do you write in a cold email?

Thanks for writing this out. I went through something close to it 4 months ago, and it settled down once I kept a simple log of every call and form.

Keep a list of who you contacted and when. It makes follow-ups easy.