iquark

YouTube Playlist show the list of videos of a given YouTube’s playlist ID.
You can choose to use it by widget or by a shortcode. There is an example if you whant to do it by the secon option:
[youtube_playlist id=”PL335DD2E2EE782021″ maxResults=”2″ thumb_size=”small” class=”youtube_playlist”]
The parameters are all optional: 
 * id: is the playlist’s ID, you can put it in either starting by PL or not, it has a default value, but is interesting you put yours :P. 
 * maxResults: the maximum number of videos to show, by default “2”. 
 * thumb_size: you can show the thumbnail “small” or “big”, by default “small”. 
 * class: you can change the class of the list by one who is better for you (in case you need it), by default “youtube_playlist”.

Youtube Playlist

YouTube Playlist show the list of a given YouTube's playlist ID.

nakunakifi

Embed a responsive YouTube Channel, Playlists or Videos as a Grid, List or Carousel. Display videos based on keyword.
Install the plugin and then checkout the Pro version (http://wordpress-plugin-youtube.cheshirewebsolutions.com/)
<ul>
<li>Use Shortcode to display Channel. </li>
<li>Use Shortcode to display Playlists.</li>
<li>Use Shortcode to display Videos.</li>
<li>YouTube Channel Header + Subscribe button</li>
<li>Social Icons</li>
<li>Display Videos Thumbnails in Grid, List or carousel</li>
</ul>
If you have suggestions for a new add-on, feel free to email me at info@cheshirewebsolutions.com. 
Want regular updates? 
follow me on Twitter! 
https://twitter.com/CheshireWebSol
<h3>Credits</h3>
<ul>
<li>Google PHP Client Library (https://developers.google.com/api-client-library/php/)</li>
<li>Slick Carousel (http://kenwheeler.github.io/slick/)</li>
</ul>

WP YouTube Embed

Display YouTube Channels, Playlists and Videos as a Grid, List or Carousel!

Youtube Playlist vs WP YouTube Embed