Looking for German Content Writer

I am looking for a German SEO content writer who has a really good grip on the German language. It's a year-long project in which I promote my gambling client on different types of websites based niches such as Technology , Finance, Business , Sports , Entertainment etc, with the help of articles. So from the content writer what i am looking for is an article in which my client link is placed naturally. It should not look forced or just for advertising. So by naturally what i mean is say I want a tech article from on the below

Topic - How technology revolutionized businesses.
Anchor Text - online casino
link - https://betnero.com/de-at/casino

Like a normal article first we talk about different aspects of businesses which are revolutionized by technology and to incorporate our link in the article naturally we can talk about how land based casinos are now also available online , because of which they can reach much wider audience and also the security is also way more improved than the traditional brick and mortar casinos. So this way the anchor text and link will be placed naturally in the article and it actually becomes a part of the article.This way it becomes more of an actual article talking about facts rather than a SEO article for the link.

So this is what I am looking for and I need an article in German between 700 to 800 Words. If you are interested, please tell me how much you charge for it ?