There is more than one way to create SEO website content.
Do It Yourself
Of course, as the webmaster, creator, or owner of the specific website or webpage you can write your own content and then make it SEO friendly; all that you will need to do is read on the subject and understand how search engine spiders work. In addition, you could use any of the search engine tools that most of them provide in order to help web writers locate the best keywords possible.
Hire other person to do it
Hiring a third party to make your website content SEO-friendly can be a wise decision if you are not savvy on SEO or do not have the time to learn by yourself or do the specific research that such things require. Such hired help can be professional or non-professional – which, by the way, is not the same thing as amateur; professional SEO writers can be sought out through the Search Engine Optimization Organizations in the internet, but their services can be a little pricey for webmasters who are just beginning or have a tight budget.
For these webmasters, the most likely choice is to get non-professional help, who are website writers who are not specifically or specialized into SEO but are aware of the requirements and have experience in making website content SEO friendly. The places where a webmaster can find such help is vast.