StanisLaw.ru

This plugin automatically makes standard blocks of the <a href="https://wordpress.org/documentation/article/wordpress-block-editor/" rel="ugc">WordPress Block Editor</a> (particularly, <a href="https://wordpress.org/documentation/article/image-block/" rel="ugc">images</a> and <a href="https://wordpress.org/documentation/article/gallery-block/" rel="ugc">galleries</a>) using the latest <a href="https://fancyapps.com/fancybox/" rel="nofollow ugc">FancyBox</a> without any additional actions of a web master.

FancyBox for Multimedia Blocks

The plugin automatically makes standard blocks of the WordPress Block Editor using the latest FancyBox without any additional actions of a web master.

dalziel

This plugin will add a noembed section no any embedded content that does not already have one. This is very handy for people reading your site in an RSS reader, as a lot of them don’t display embedded content.
Also, for any Youtube or GameVideos.com videos, this plugin will also show a thumbnail of the video. The message displayed can be customised from the options page for the plugin.
See the <a href="http://blog.slaven.net.au/wordpress-plugins/noembedder-wordpress-plugin/" rel="nofollow ugc">Plugin Homepage</a> for more information.

Noembedder

Adds noembed tags to any embeded object that doesn't have them

FancyBox for Multimedia Blocks vs Noembedder