ShabakeMa

<p>It lets you embed videos from <a href="http://shabakema.com" rel="nofollow ugc">ShabakeMa.com</a> via [shabakema] shortcode. Let your sites load faster with Lazyload mode (Because shabakema supports native thumbnails). Clean and easy shortcode syntax.</p>
<p>You can adjust the size of the video player by changing the values of ‘width and ‘height’ parameters in the shortcode. The following code will create a player that has a custom width and height. Sample: ‘[shabakema width=”100%” height=”500px”]http://www.shabakema.com/product/1848[/shabakema]’</p>


ShabakeMa Video Embedder

ا, iframe, video player, shortcodes, video-embedder, media
Requires at least: 2.0.2
Tested up to: 3.9.1
Stable tag: trunk

ShabakeMa Video Embedder le …

Eirudo

<p>Embed YouTube videos and keept their aspect ratio, just using simple shortcode.</p>
<ul>
<li>Simple shortcode, can be used in the posts or widgets.</li>
<li>Using default YouTube Embed Code (iframe), but make it responsive</li>
<li>Custom aspect ratio, if you want set different porpotion size.</li>
<li>Auto centered position. So if you insert it on your post section, the video always on center-aligned.</li>
<li>Lazy Load supported.</li>
<li>100% Free! And no ads or even trackers inside.</li>
</ul>
<h3>Arbitrary section</h3>
<h3>A brief Markdown Example</h3>
<p>Pros:<br />
1. Simple, only using shortcode to use for individual video each shortcode<br />
2. Lazy Load supported<br />
3. Custom parameters for advanced use</p>
<p>Cons:<br />
1. Only for simple use,not for advanced playlist. Embedding one video for each shortcode.</p>


Simple YouTube Responsive

Perfect

You can add a line to your functions.php to make videos responsive if you're doing your own theme. However, if you're not, this plugin works beautifully and gives other options like lazy load, etc. 

If doing your own theme, add: add_theme_support( 'responsive-embeds' );

Works Beautifully

Embed responsive YouTube videos using simple shortcode. Lazy Load supported.

ShabakeMa Video Embedder vs Simple YouTube Responsive