Once you have published a Facebook post on your business page you have the option of “boosting” it. For a small fee, and a fee you have 100% control over, you can pay to have more people see it in their Facebook feed. It works very well.
I’ve used the “boost” after posting a special offer that linked back to a landing page. For under $100 the post was boosted and over 4000 people saw it in their Facebook feeds. The ad paid for itself 10x over. Using Facebook Insights, I could see the engagement and click-through. You can boost a Facebook post for as little as $20.00.