Basically, figure out what the niche of a website is, create some good quality content that users will benefit reading if they were looking for something within that niche.
Ensure that each of the pages and articles have header tags with the content in those tags.
The URLs should have the individual category for each niche within the niche you're planning on featuring. also the article name should have the long tail keyword in it so that it flows well for example www1.site.com/niche/long-article-name-about-your-article
Search for your keywords in Google and find a way to get a link from those top sites back to your articles you wrote. Increasing your domain authority and relevance to the industry.