There are a couple ways of getting real likes - depending if you want them free or not. This is also depending on your niche. However, I will tell you a free and paid way of getting likes.
Free: invite your friends, ask friends to invite their friends, create a page & random people will like it as well, put up the facebook like page on a website that you have, etc.
Paid: find out where your fans will be, and what they like. Find the liked pages and contact them about promoting something through their page. See how much it costs. You immediately have a platform that will post out to your intended audience.
If I think of anymore, I will respond to this post.