After you have generated a lead start an automated email onboarding cycle where you send your lead regularly an email with
a) the next step for a perfect onboarding experience (What to do?, How to use this tool?, How others use this tool, …)
b) Giving tips and tricks for your favorite topic that matches your industry.
Important: These emails must have value first. Don´t sell too much. It´s a warm welcome, not a cold sales message.