In one of the posts I have shown you to a site that offers an array of CMS that you can try for your website. Some of these CMS, however, are paid. What's better, in my opinion, are free CMS that you may actually customize to suit your specific needs.
Even with free CMS, there are a lot ones out there. That's why we have websites here like Open Source CMS that will give you an overview of these free CMS's.