Perhaps the only real way to reach free leads is to network with other, more experienced marketers, and perhaps get them to share their lists as a way to get you off the ground. With this, you aren’t really getting free leads as such – more leads at no up-front cost. The other marketers will usually expect that you will send commission to them for the sales that you make.
Not everyone is good at getting leads on Facebook. I learned I’m not good at using funnels to get Facebook leads – despite spending a lot of time and money on it. That’s why I hired Luciano through a freelancer website. He was the only guy there who did funnel consulting. He was not just a consultant. He helped me through some down times when I lost some income due to affiliate marketing changes and was scared I might need to get a job.
I used to work for a telemarketing company when I was 18 selling long distance. About 20% of the people cursed me out as they did not want a telemarketer calling their house. That job was not fun but it helped me get over my fear on the phone. I owe a lot to that job and in life we can attribute a lot of our growth to the times where things were NOT that fun.
Then figure out where your target customers can be found—both physically and virtually. College students who need more income can be found on campus or on online forums or websites about learning to manage your money. Athletes and people who lead healthy lifestyles can be found at gyms and online groups or websites about running, yoga, healthy eating, and more.