Embedly

Enhance the default WordPress embedding to get previews for any article, 
including your own blog posts. You also get embeds for Gfycat, Twitch, Google 
Maps, and Embedly’s growing list of <a href="http://embed.ly/providers" rel="nofollow ugc">500+ supported 
providers</a>.
You can customize the style of the embeds, to optimize for darker WP themes, 
alignment, and width. In addition, social buttons can be added around the embeds 
to make it easier to share content from your blog posts.
If you have an Embedly Cards account, you can link it to the plugin with your Embedly API key. Not only does this remove branding from the cards, it also gives you access to analytics and viewer behaviors for most popular music and video player embeds (YouTube, Vimeo, Instagram, SoundCloud). Find out how many people viewed your embeds for how long. To learn more about Embedly Cards please visit <a href="http://embed.ly/cards" rel="nofollow ugc">our website</a>.
Using it is as simple as the default WordPress embedding. Embed media by pasting its URL in a single line when writing a post
The plugin automatically displays an embed of the media in the WordPress post 
editor (for WP 4.0+).
Fair Warning: This plugin generates static HTML content for your posts. After you deactivate 
the plugin, that HTML will still remain behind in all posts where the plugin was used to create 
embeds.

The Embedly Plugin extends Wordpress's auto-embed feature to give your blog more media types and style optons.

lenasterg

Adds oEmbed support in WordPress posts, pages and custom post types for videos from https://video.sch.gr, school location map from https://maps.sch.gr sites of Greek Schools Network. 
There are no settings. Simply, add the URL in your content editor. 
For video embedding from https://video.sch.gr: Just paste the given “Απευθείας σύνδεσμος” link from the “Κοινοποίηση” section of a video from video.sch.gr into the content area and it will by transformed to oEmbed into your post, page or custom post type. 
* Example video: Copy https://video.sch.gr/asset/detail/n1rDHZIL7FEdoctIUjzKzPuS/t2NkiLSvRHDiSNaTtSVm2Dh6 and paste it into your post. 
* Example slideshow: Copy http://lterz.mmpres.sch.gr:4000/popcorn/1h and paste it into your post.
For school location map from https://maps.sch.gr: Find the school you want at https://maps.sch.gr. Right click on the marker and copy the text from the “Αντιγραφή συνδέσμου” textbox. Go into your WordPress post/page editor and paste the URL in a separate line. Publish the post/page and the map will be embedded.

Sch.gr Commons

Just copy/paste a URL of video from https://video.sch.gr, or a school location map from https://maps.sch.gr into your WordPress posts and see them emb …

Embedly vs Sch.gr Commons