ericjuden

Approval Workflow is meant to create a workflow process in WordPress. This plugin adds a box to the post edit screen when a user does not have publish permissions for that post type. It also allows you to set a WordPress role as the approvers. Note: this role must have publish permissions. The approvers get notified by email when someone has submitted something to the workflow. This works on WordPress Multisite too.
If you need help setting up the roles, I’d recommend the <a href="https://wordpress.org/extend/plugins/members/" title="Members plugin" rel="ugc">Members plugin</a>.

Approval Workflow

Approval Workflow is meant to create a workflow process in WordPress. This plugin adds a box to the post edit screen when a user does not have publish …

evidentlycube

This plugin allows selecting content types (post, page, custom) that are subject to quality control, where specified 
editors have to approve them before they cna be published.
Features: 
1. Separate configuration for each content type. 
2. Define list of users who can approve content. 
3. Define the minimum number of approvals requires for the content to be publishable.

Publish approval

Disallow publishing content until it is approved by a specified number of people.

Approval Workflow vs Publish approval