The answer to this question is different for every business—some may get the best results from a comprehensive email drip campaign, while others may have success by regularly posting videos. The real “best type,” however, is the kind that meets the search intent of your audience.
Regardless of the form your content takes, it should offer a clearly stated solution to the problem the searcher is looking to solve, provide links to more information that can help them make decisions, and make it easy for them to take the next step from one stage of the buyer’s journey to the next.