Which one is better between referral contest and content marketing?

[Btaliat]

There are a lot of ways by which freelancers can build their clients. There are some that may use content marketing where they will be writing, targeting the right audience. With this, they can easily make more clients especially if they know how to appeal to their clients using the right approach. They need to tell them how they can solve the problems they envisaged. However, it is possible for the freelancers to use referral contest as well to make the clients grow.