Send individualized messages to contacts who genuinely match your intended reader. Explain the problem you are focused on, share one quick resource, and ask permission to add them or request they join the list themselves. Gratitude beats pressure. Keep a spreadsheet to track responses, so follow-ups are timely, brief, and considerate.
Identify three forums or groups where your audience already seeks answers. Contribute with step-by-step help and tiny case studies before linking anything. When invited, share your landing page with a clear benefit and an example issue attached. Respect moderator guidelines, and your reputation will carry your link farther than any sales pitch.
Find adjacent creators whose readers face the same pains from different angles. Offer a value-forward guest tip for their list and invite them to do the same. Keep the exchange symmetrical, track new-subscriber quality with tagged links, and send a brief recap so both sides learn and improve their next collaboration.