We are developing a business plan for a well researched niche. Our investor does not care what the content costs at this point, but we need to include legitimate costs for the content and where we will source it. Who are the "go-to" writers (PLEASE no $5 articles) that produce valuable unique content that will be read and recommended by educated English speakers. We realize that we should expect to pay hundreds of dollars per month for this type of content so we don't want to go into a blind testing scenario that could protentially be embarrasing for our team. A strong recommendation would be appreciated.