For a 1000-word post, 3-5 H2 headers is ideal. This breaks the text into manageable chunks and helps search engines understand the structure of your content.
"How-to" guides and "Listicles" generally perform best because they directly answer specific user queries and are easy to skim.
Word count targets help you balance your content. You don't want to spend 80% of your post on the introduction; targets ensure you give enough depth to the most important sections.