Yes, I usually try to find some good gigs on fiverr to get started such as this: https://www.fiverr.com/alisamedia/tweet-about-your-website-or-product-to-over-10-000-followers
Post often, but not too often. Posting often increases your visibility on people's timelines, making it less possible for your posts to be overlooked or skimmed over. If you can become known for posting interesting and funny status updates, photos and videos, people will be more likely to stop and take notice when your name appears on their feed. The more people who actually pay attention to what you're posting, the more people who'll be inclined to like each post. You should also try SEOclerks, as many freelancers here provide facebook likes at a cheap rate.
Don't submit unwanted posts and adult contents as well. Present valuable and useful information in your posts.
A lot of factors I consider, First would be the timing; it is important that you post/share/update on the time that people are most likely to engage. Second, use a catchy subject headlines, along with the most appropriate hashtags. Then, make sure to use visual images or quotations if applicable, its effective. And last but not the least, engage, make your followers feel that you exist, make them feel you are reachable.