The six different types of blog posts that are likely to work for any type of business are:

1. How-to Guides: These blog posts provide step-by-step instructions on how to do something related to your industry or niche. They are valuable for readers who are looking for practical advice and solutions.

2. Case Studies: Case studies showcase real-life examples of how your product or service has helped a customer achieve success. They provide social proof and demonstrate the value of your offerings.

3. Expert Interviews: Conducting interviews with industry experts or thought leaders can provide valuable insights and perspectives for your audience. It also helps to establish your brand as a trusted authority in your field.

4. Product Reviews: Writing detailed and unbiased reviews of products or services related to your industry can help your audience make informed purchasing decisions. It also positions your brand as knowledgeable and trustworthy.

5. Industry News and Trends: Keeping your audience updated on the latest news and trends in your industry shows that you are actively engaged and knowledgeable. It helps to position your brand as a reliable source of information.

6. Listicles and Roundups: While the instructor mentioned that these types of blog posts may not work well, they can still be effective if done right. Listicles and roundups compile a list of resources, tools, or tips related to a specific topic. They are easy to read and provide quick, actionable information for your audience.

Remember, the key to creating blog posts that attract new traffic and continue to work month after month is to invest time and resources into creating high-quality content.