In order to configure the access rights for the blog admin pages please go to Admin Panel > System > User Roles.
Then choose the user role you want to change the access rights to.
Afterward, in the Role Resources section, you see the resources tree where you need to find the 'Blog' checkboxes.
With the ACL you can restrict the rights for viewing, editing, deleting blog posts and categories as well as for tags and comments. Besides, you can set additional rights for the ability to import the blog and administrate the main blog configurations.
Sometimes you need to enable someone with the right to publish or edit the published blog items (posts, categories, tags, comments, etc.). For example, you have a writer, who creates and saves but can't post since there is a proofreader or manager responsible for that. For Magento 2 Blog Plus and Blog Extra users there is available a Save Published option.
Also, we recommend you to choose the delete option to certain admin roles only.
Once you have finished don't forget to press the Save Role button.