Thoog_10

Rather than embedding video after video on a page or post, this plugin allows the user to consolidate those video embeds into a list that plays within one div.
<ul>
<li>This lets the user keep all their video embeds in one place, the Async Vid List settings page.</li>
<li>The presentation is more aesthetically pleasing to the viewer.</li>
<li>Only the video that is clicked on is loaded.</li>
</ul>
Multiple lists can be used on any page or post (or even sidebars) using the shortcode and the list ID.
The CSS is intentionally kept simple – feel free to customize it per your theme.
This plugin only uses one row in the wp_options table, so there is no database bloat.

Async Vid List

Lets the user create lists of video embeds that load and play asynchronously in one div

kylereicks

Head.js is a script to asynchronously load and manage dependencies of javascript and CSS assets.
This plugin loads the scripts and styles enqueued in footer with the head.js loader. It does not include head.js’ feature detection.
Head.js.wp assumes that scripts are loaded via <code>wp_enqueue_script()</code> and that any script enqueued in the <code><head></code> intends to be loaded before the rest of the page.

Head.WP

Head.js is a script to asynchronously load and manage dependencies of javascript and CSS assets.

Async Vid List vs Head.WP