Lucy Tomas

<p>Very simple plugin that will search for all the first images of your published posts, pages or custom post types and set them as the featured image.</p>
<ul>
<li>You can choose the post type you want to run the plugin on.</li>
<li>Option to overwrite the already selected futured images.</li>
<li>Option to select From / To date.</li>
</ul>


Set All First Images As Featured

still works

It simply didn't recognize any images in any of the posts, and so didn't work. :(

Didn't see the images in the posts

IT works on 5.0.3

Sets the first image of your posts, pages or custom post types as the featured image.

wpmen

<blockquote>
<p>What we have created is a combination of elegance and simplicity.<br />
  To be able to post random show site users. Simply install and activate the plugin Random post with ajax and only using a shortcode in any part of the site that you want to display random posts.</p>
</blockquote>
<h4>Random Post with Ajax includes the following features:</h4>
<ul>
<li>Choice Categories</li>
<li>Choice of Post Type</li>
<li>Possibility to choose the number of posts</li>
<li>Show Content (Excerpt)</li>
<li>Display post date</li>
<li>Show Thumbnail of post</li>
<li>Beautiful design</li>
<li>User friendly</li>
<li>Responsive</li>
</ul>


Random Post with ajax

thanks to author

Combining beauty and efficiency to display random posts

Set All First Images As Featured vs Random Post with ajax