Series of articles - Create a series of articles on your blog if the subject you choose to talk about is an extensive one.
Grammar - Depending on the language you use, blogging just makes it imperative that you are reasonably good with your grammar skills and proficiency if not a master. Remember your audience is a mix of both; the ones who are experts and the ones who are not.
Listicles are for E-commerce bloggers. Write the top 10's for your products/services. It could be benefits, features, place or anything else. It helps your audience grasp information quickly.