There are no free ways to do it, but if you want to spend some money, you may create a Facebook advertisement on the right side of the page by clicking the Create Ad Button on top of one of the ads.
Ways to promote Facebook page and account
A few pointers to assist you advertise your Facebook profile:
Share it with your coworkers, friends, and family.
Make use of your imagination when it comes to your material.
Use the link to your Facebook page in your email signature.
Participate in your Facebook interest groups.
Facebook Ads can help you promote your Facebook page.
Wherever possible, use hashtags. It will increase the visibility of your content.
On your Facebook profile, post on a regular basis.