By having links to your site on other sites of high authority, it builds trust and also helps the algorithm associate your site with both your keywords and reliability. A link from a site that has been deemed authoritative on its topic, like the Wall Street Journal, is going to …

Build a list of other niche blogs in your field. Start commenting on their blogs with insightful comments, and then reach out to them and ask if you can write one guest post for them. If they accept, write NEW content for their blog (don't just copy and paste something …