When it comes to value creation, the first thing you need to remember is that content is for the user and not just a means for ranking. The concept of producing content primarily for SEO is repetitive and outdated. It is also best to avoid a promotional tone in your content as this may lead to your website being classified as a spam website.
The question you need to ask yourself now is: how can your content help users better than all the existing content out there? If it is not better than the current information, what is the point? Value is the most understated element in your ranking and it goes up whenever users engage with your website by commenting, liking, or staying on to read what you have to say.