WPXERO

WPXero Iframe adds a dedicated Gutenberg block for external embeds that do not ship a first-party Core block. Use it for videos, maps, audio players, dashboards, booking tools, donation widgets, LMS players, and other iframe-friendly services.
Why this helps SEO and discoverability
<ul>
<li>Editor & directory search — The block title, description, and keyword list match how people look for “iframe block”, “youtube embed”, “maps embed”, “Gutenberg embed”, and similar queries.</li>
<li>On-page context — An optional caption is output as a real <code><figcaption></code> under the embed so your page still has indexable text explaining what visitors are seeing.</li>
<li>Accessible names — Encourages a descriptive <code>title</code> attribute on the iframe for assistive technology and clearer browser behavior.</li>
<li>Crawler-friendly fallback — A <code><noscript></code> block includes a plain link to the sanitized HTTPS embed URL when scripts are off, so bots can still discover the destination.</li>
<li>Performance — Lazy-load mode only loads the small front-end helper script when that option is enabled.</li>
</ul>
Pair it with your SEO plugin (Yoast, Rank Math, SEOPress, AIOSEO, The SEO Framework, etc.) for meta tags, schema, sitemaps, and analytics.

Iframe Block – Easy Embed Block for YouTube, Vimeo & More

Embed responsive YouTube, Vimeo, Google Maps, and other HTTPS iframes from the Block Editor. Optional visible captions, iframe titles, semantic figure …

Tiago Rodrigues

<a href="http://wpgate.com.br" rel="nofollow ugc">WP Video Floater</a> WordPress Plugin allows you to insert a video on the page and, as the user scrolls the page, the video will be pushed to the bottom-right. Works with OptimizePress Embed videos too.
<h3>Key features</h3>
<ul>
<li>Sell more! Allows your visitor to watch your video and see your content at the same time.</li>
<li>You don’t have to edit source code of your template to insert any code.</li>
<li>No coding, just 2 easy steps and you’ll have an awesome page!</li>
</ul>
<h3>To use it you’ll need to add a class to the iframe that you want to scroll and add the shortcode below to anywhere in the page.</h3>
Class to the video: 
 wp-video-floater
Shortcode to the page: 
 [wp-video-floater]
<h3>Works with OptimizePress. The plugin works nice with OP pages. You’ll need to do the same thing above, but also you’ll need to add a class to the element.</h3>
There’s a settings icon on each element on the top-right, if you click you’ll see an “Advanced element options” popup and then you’ll be able to add the class below
Class to the OP element: 
 wp-video-floater

WP Video Floater

This plugin will allow you to keep your videos playing floating at the bottom of the page as you scroll down.

Iframe Block – Easy Embed Block for YouTube, Vimeo & More vs WP Video Floater