INN Labs

Pym.js Embeds provides shortcode and Gutenberg block wrappers for embedding responsive iframes using <a href="http://blog.apps.npr.org/pym.js/" rel="nofollow ugc">Pym.js</a>, developed by the NPR Visuals Team. Embedded content resizes vertically to match its container’s width.
AMP compatibility is provided by the <a href="https://wordpress.org/plugins/amp/" rel="ugc">official AMP plugin</a>.
<h3>Pym.js Resources from NPR</h3>
You may also want to look at NPR’s Pym.js resources:
<ul>
<li><a href="http://blog.apps.npr.org/pym.js/" rel="nofollow ugc">Pym.js homepage</a></li>
<li><a href="https://github.com/nprapps/pym.js/" rel="nofollow ugc">Pym.js repo on GutHub/nprapps</a></li>
</ul>

Pym.js Embeds

A WordPress block and shortcode for embedding iframes that are responsive horizontally and vertically, using the NPR Visuals Team's Pym.js.

Dave Lavoie

EP4 Corporation

EP4 More Embeds adds support for more embedded content on your website. It makes use of WordPress <code>wp_oembed_add_provider</code> 
for providers supporting oEmbed, and <code>wp_embed_register_handler</code> for the other providers who still allow embedding 
content on other websites even though it’s not through the oEmbed feature.
At the moment, the following providers are supported:
<ul>
<li>Bandcamp</li>
<li>Box.com</li>
<li>Twitch.TV</li>
<li>VEVO</li>
</ul>

EP4 More Embeds

Support for more embedded content on your website. Current supported embeds are Bandcamp, Box.com, VEVO & Twitch.

Pym.js Embeds vs EP4 More Embeds