Content writers all seem to follow a code

It does not seem to matter whether you pay a writer $10 or $20+ for an article, they all seem to produce content that is very similar. Its like as if they follow a guideline on how to write web content.

I have used upward of 30 writers I think over the last 5 years and in that time two have been what I would describe excellent writers who produce really compelling and engaging content. Unfortunately, one charges $10 per 100 words so had to give up on her after only a few articles (couldn't justify the cost of paying between $50 to $100 for an article of 500 to 1000 words). She is from the States and writes for fairly large sites. I am sure she makes 10s of thousands of dollars a month writing. There is no need for her to bring down her price for me as she is already highly established.

The second writer is equally as good and charges $20 irrespective of the length (be it 500 words or 1000+ words). He can do this because he is from India where cost of living is obviously lower. But he has his hands tied and can only do a max of around 20 articles a month.

I use two other writers and they are both much inferior (both American actually).

I need a second high-quality writer on board but can't seem to find one (unless you are willing to pay prices that wouldn't really make sense for a regular site owner such as myself). Like I say, they all seem to follow the same pattern of writing. There is no character in the writing. Its all descriptive rather than analytical.