Sorry, there really is no such thing. Like anything else in your business, social media takes planning, effort, commitment, and persistence for it to pay off.
I stumbled upon this great graphic from Constant Contact that helps break down really simply some of the most popular networks.
In my experience, this is a pretty good overview. You’ll want to experiment and work with your schedule, team, and customers to maximize your effort. Unfortunately for everyone, there’s no magic bullet, no one-size-fits-all formula. However, there’s lots of good resources out there and you can always get in touch with Slanted and we can help!