Martin Lormes

Automagically adds Open Graph tags to your blog. Control how your posts and pages are presented on Facebook and other social media sites. No configuration needed.
When someone likes or shares your blog on Facebook, your header image is shown. If someone likes or shares a post, the featured image (post thumbnail) is shown. If you haven’t selected a featured image, then the plugin looks for the first image inside the post. If there aren’t any images in your post, then your blog’s header image is shown.
For more information on the Open Graph protocol go to http://ogp.me/

Open Graph Pro

Adds Open Graph tags to your blog. Control how your posts and pages are presented on Facebook and other social media sites. No configuration needed.

ΩiRUS

This plugin helps WordPress sites to use SVG images as the featured image which can be shared on Facebook or Twitter with the SVG preview image in the post.
This plugin creates a <code><meta></code> tags for Facebook and Twitter sharing purpose, which enables the SVG images to be set as a preview images for post shared on these social networks.
<pre><code> <meta name="twitter:image" content="http://example.com/wp-content/uploads/svg-png/sample.png">
 <meta property="og:image" content="http://example.com/wp-content/uploads/svg-png/sample.png">
</code></pre>
This plugin uses PHP ImageMagick to create thumbnails for your social shares, so please make sure this extension is available.
We recommend <a href="https://wordpress.org/plugins/safe-svg/" rel="ugc">Safe SVG plugin</a> to enable SVG/XML mime type on your WordPress site.

SVG Featured Image

SVG -> PNG is useful if you have vector images as featured images to your post or page.

Perfectly works with SEO plugins

This plugin helps Wordpress sites to use SVG images as the featured image which can be shared on Facebook or Twitter with the SVG preview image in the …

Open Graph Pro vs SVG Featured Image