Research the keywords people use to find your product, and then write articles optimized for those keywords. Either that, or find one keyword you want your website to rank for and optimize your home page for that one keyword. You can do this with SurferSEO or PageOptimizer Pro. Then do a backlink audit of the websites who currently ranks for that content, and then proceed to build comparable backlinks to your home page to outrank them. You can do this with a tool like Ahrefs or Semrush.