Tags: Use of relevant tags is important from the SEO perspective. It helps the search engine track your post based on the tags you use.
Popular Topics: Stay updated with new topics or popular topics on other blogs you follow.
Use technology - Social plugins and SEO tools are a great thing to market your blog or a blog post. If you do not know about it, then learn it. It helps you reach out your audience in a better way and also improves the ranking of your blog.