Best Tactics for B2B outreach for Pilot Programs?

Hi Ladies! What's your outreach process for getting businesses to join your pilot program? Here's what I have been working on: Obviously referrals are the best! If I don't have a referral, I qualify businesses by looking at their websites & social to see if they may be a good fit. Second, I have tried cold email outreach. Calling to set up a meeting/demo with the decision maker is next step.The last attempt may be me reaching out by social media messages. Any suggestions??