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.

DannyvanHolten

<p>Add all kinds of functionality to the YouTube player trough it’s API.<br />
Control the volume, hide the controls or just play a selected part of your video. T<br />
The YouTube Customizr makes custom YouTube players accesible for every WordPress user.<br />
Upcoming features contain a fully customizable player trough our javascript features.</p>
<p>Please reckon this is still in beta. If you find any bugs please do report.<br />
A roadmap is available in the “Other Notes” tab. If you would like a certain feature to be build first, please let me know.</p>
<h3>Roadmap</h3>
<ol>
<li>Fix the start – end time of a video</li>
<li>Add the custom player options</li>
<li>Change the title and url fields</li>
<li>Add lightbox support</li>
<li>Make it possible to play multiple videos on 1 page.</li>
<li>Make the list view fancy (nice titles, urls, and thumbnails)</li>
<li>Make an archive page</li>
</ol>


Youtube Customizr

Customize your YouTube Player. Control everything in your own custom player.

Simple YouTube Responsive vs Youtube Customizr