Need an easy way to set up users posts in a separate category.

Hello, last week I set up my first blog on WordPress. I set up my blog so I’m the only one to post, but some of the users on it said they would like to be able to post too. I thought it would be a good idea but I don’t want them to be on the main page with mine.

Is there an easy way to make it so the users can post but it wont show up on the main page. For example set up a different category with a link on the site that shows all of their posts.