[garethsprice]

What do you mean by "really good"? Spelt right and mildly engaging, or the next EB White's "This is New York"?

First you'll find on Upwork or Textbroker no problem. Latter will be a long search for a great writer who creates exactly the work you want.

Writing is like most other unregulated professional services in that costs vary wildly, as does quality, and the two are not necessarily correlated.

Get samples, ask friends for recommendations, find blog posts you like and e-mail the authors, give small easily completed sample tasks that grow into big assignments and build a solid relationship with one vendor over time.