[innocent21]

The CMS's I use are Wordpress and Processwire, and the Codeigniter framework.
If you want a CMS that intregates well with a forum script, I suggest you use Wordpress and bbPress.

I've come up with a way to just use forum software to create a CMS. You just create a BB sub that's visible only to content creators that they can post new stories, etc. to, and then on the main page you use a PHP include() to display post.php with the post ID number added. This allows one to display the data from a specific post into a main page-type story. Also allows for streamlined editing of posts, removal, etc.
It's been years since I've done it, but I did remember the process.

If you want to use MyBB as a CMS, there is a really good plugin for it called XThreads.