There are several ways to get free referrals. One way is to use social media platforms, such as Facebook, Twitter, and Instagram, to promote your business or services. You can also use word-of-mouth referrals by asking friends and family to spread the word about your business. Additionally, you can use content marketing to create useful and engaging content that will attract potential customers. Finally, you can offer incentives, such as discounts or free products, to encourage people to refer your business.