There is a wide range of CMS‘s available for use. Some of them are free like Joomla, WebGUI, Bricolage, Mambo and some of them are commercial ones like Bitrix, Drupal, etc. Joomla notably stands out from the other CMS‘s thanks to its quality and usability.
You can also find website templates that are designed for content management. This means if your goal is to create a content-based website, such as a blog, you will have an easy time managing the content. You will be able to easily create and publish unlimited blog posts, and all without having to have knowledge of web programming like HTML, CSS, PHP, etc. One of the best templates for content management would be WordPress and also Joomla. There are other options available as well that you might be more comfortable with.