So, the CEO of your company wants to dip his/her toes into the social media pool" MDG Advertising has three suggestions.
MDG Advertising shared the infographic below, elaborating on its three steps for CEOs, which are:

Start with LinkedIn: The business network is the most popular with CEOs for a good reason; find out how to make the most of your profile and optimize your presence. Pick other networks and stick with them: CEOs can?t be on every network outside of LinkedIn, but they should be on some; learn how to determine which are the right ones for you.
Avoid being boring: Social posts from CEOs are often dull, despite the executives being personally engaging; find out how to avoid this huge pitfall.

...