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.

David Angel

<p>AudioTube is a WordPress plugin that lets you embed YouTube videos simply as audio players. It’s great for adding songs or spoken word to your posts and pages.</p>
<p>See more info at http://davidangel.net/audiotube/</p>


AudioTube

AudioTube is a WordPress plugin that lets you embed YouTube videos simply as audio players. It’s great for adding songs or spoken word to your posts a …

Simple YouTube Responsive vs AudioTube