tom.maitland

Restrict Page Parents is a lightweight plugin to enhance the user permissions features of WordPress. It changes the option to set a page parent to only show pages owned by the current user. It can also be configured to force users to select a parent page before they’re able to publish or save.
Restrict Page Parents prevents users from adding their own pages under sections of the site they do not own or are able to manage. Users can be confined to their own section of the website, making your site permissions much more secure.
Permissions can be configured for each user role, each individual user and turned on/off based on post types.
You can find out more about the plugin <a href="http://www.tommaitland.net/restrict-page-parents" rel="nofollow ugc">here</a> or on the <a href="https://github.com/tommaitland/rpp" rel="nofollow ugc">Github project page</a>.

Restrict Page Parents

Restrict Page Parents restricts page parent options to those owned by the user, with the option of forcing a page parent.

Paul Ryan

Limit Revision Publishing restricts edits made by users without the publish_posts capability. Their edits will be saved as an unpublished revision, and the original post will remain published. The All Posts view in the WordPress Dashboard will contain a column indicating posts with unpublished revisions. Notification emails can be sent to a subset of users whenever a new revision has been submitted so users with elevated privileges can publish them. Finally, specific roles can be marked as limited, so any users with that role will be restricted from publishing revisions on all post types. 
Note: this plugin only works with the Classic Editor (TinyMCE). Users of the Block Editor (Gutenberg) will be able to publish any post types granted by the capabilities in their assigned role.

Limit Revision Publishing

Limit Revision Publishing restricts edits made by users without the publish_{post_type} capability.

Restrict Page Parents vs Limit Revision Publishing