marckula

This plugin registers Haiku Deck ( haikudeck.com ) as an oEmbed content provider and adds it to the whitelist, allowing all users to use this provider.
Here’s more information about embeds for WordPress 
https://codex.wordpress.org/Embeds

Haiku Deck for WordPress

Register Haiku Deck as an oEmbed content provider

GeniiPress

An ultra-minimal plugin to disable the oEmbed core feature, speeding up your site.

GeniiPress Disable Embeds

Disables the oEmbed feature from core, for a performance gain.

Haiku Deck for WordPress vs GeniiPress Disable Embeds