Hugh Lashbrooke

Sick of adding a image to your post content then also setting it as the featured image in a separate action? Of course you are!
This plugin solves this problem by adding a new button alongside the “Insert into post” button in the media manager modal. When clicked, this button will insert your selected media and then, if you have selected an image, set that image as the post’s featured image.
It is possible to select multiple media items to insert, so this plugin will set the last image in the selected set as the featured image. The button will appear in the media manager modal for all post types.
This plugin works with WordPress 5.0+, but it will only work with Classic block or in the Classic Editor. It does not currently work with the Image block (or any other similar ones).
Want to contribute? <a href="https://github.com/hlashbrooke/Instant-Featured-Image" rel="nofollow ugc">Fork the GitHub repository</a>.
Got some great ideas? <a href="https://wordpress.org/support/plugin/instant-featured-image" rel="ugc">Post on the support forum</a>.

Instant Featured Image

Set an image as the featured image at the same time as you insert it into the post content.

Sanny Srivastava

Are you tired of manually configuring a default featured image each time you publish a page, post, or custom post type? Do you desire a default featured image to automatically serve as a thumbnail whenever you publish or update your post/page?
Look no further!
This plugin provides a convenient solution to set a default thumbnail image effortlessly for all your posts, pages, or custom post types. Select or upload any image from your media library with ease.
Access the settings via the WordPress Dashboard under Settings => “SNY Auto Featured Image” (admin menu).
Quick Setup:
<ul>
<li>Choose/upload an image from the media library.</li>
<li>Specify categories.</li>
<li>Define the post types.</li>
</ul>
Please note that this plugin automatically assigns a thumbnail when a post is published or modified, but only if the post lacks a featured image.

SNY Auto Featured Image

Automatically set a default featured image for posts, pages, or custom post types when none is assigned.

Instant Featured Image vs SNY Auto Featured Image