Philip John

WordPress v3.3 removed the header from the admin interface, merging it with the admin bar.
This meant that the link to your site’s front page was taken away and you now have to go through drop down menus to get to the link.
Instead, this plugin puts that link back onto your admin interface.

Restore Admin Header

Add the link to your site back to the top of your WordPress admin!

Konstantin Obenland

This plugin lets you specify a header image for each post, page, custom post type or archive page individually, from your default headers and custom headers.
It adds a meta box in the post edit screens with the header selection and a settings field in the edit profile and each taxonomy edit screen. 
If no specific header is specified for a post it will fall back to the default selection. 
There is no change of template files necessary as this plugin hooks in the existing WordPress API to unfold its magic.
Thanks to Erik T. for the idea to this plugin!

WP Display Header

This plugin is not compatible with WP version 4.8.1.

Not compatible

Select a specific header or random header image for each content item or archive page.

Restore Admin Header vs WP Display Header