ulfben

This plugin adds an “Use as Featured Image”-action to the Media Library. Very useful if you need to set the post thumbnail / featured image for a lot of posts.
<a href="https://wordpress.org/extend/plugins/bulk-select-featured-image/screenshots/" rel="ugc">A picture says more than a thousand words</a>.
//<a href="https://www.ulfbenjaminsson.com/" rel="nofollow ugc">Ulf Benjaminsson</a> 
Copyright (C) 2012 Ulf Benjaminsson (hello at my full name dot com).
This program is free software; you can redistribute it and/or modify 
it under the terms of the GNU General Public License as published by 
the Free Software Foundation; either version 2 of the License, or 
(at your option) any later version.
This program is distributed in the hope that it will be useful, 
but WITHOUT ANY WARRANTY; without even the implied warranty of 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
GNU General Public License for more details.
You should have received a copy of the GNU General Public License 
along with this program; if not, write to the Free Software 
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Bulk-Select Featured Image

Allows you to select Featured Image / post thumbnail for your posts directly from the media library view.

sewpafly

<h4>Features</h4>
<ul>
<li>Provides a shortcode for embedding post-thumbnails. Authors can quickly change pictures in posts without wading through HTML. This can be awesome in several ways: if your post-thumbnails change the width or height due to a theme change, or if you have cropped them with another tool — this will always pull wordpress’ latest image).</li>
<li>Includes a hook into the media library to create the above shortcode.</li>
<li>Add new post thumbnails via WordPress Settings → Media.</li>
</ul>
<h4>Future Plans</h4>
Submit any other ideas at https://github.com/sewpafly/post-thumbnail-extras/issues.

Post Thumbnail Extras

Make using post thumbnails easier for everyday wordpressing.

Bulk-Select Featured Image vs Post Thumbnail Extras