Josh

Add over 50 animated smilies to your visual tinymce editor.
This plugin is designed to be used as an add-on to my Ultimate TinyMCE plugin. However, it can also be used as a stand-alone plugin as well.
For best results; You can download Ultimate TinyMCE here: 
https://wordpress.org/extend/plugins/ultimate-tinymce/
This addon will add a button to your visual tinymce editor for posts/pages. Clicking the button will open a popup window with over 50 professionally animated .gif smiley’s.
You can insert these smiley’s into your post/page content areas. Simply click a smiley, and it is automatically inserted into your content area.
<h3>Features</h3>
<ul>
<li>Includes over 50 professionally created animated smiley’s.</li>
<li>Easily insert them into your posts/pages with a single click.</li>
<li>I may consider making new smilies upon request.</li>
</ul>

Moods Addon for Ultimate TinyMCE

Add over 50 animated smilies to your visual tinymce editor.

stuartquin

Emoji Reactions allows visitors to a WordPress site to rate and react to 
content using Emojis.
<ul>
<li>Full set of emoji from <a href="http://emojione.com" rel="nofollow ugc">EmojiOne</a></li>
<li>Support for range of content – posts, pages, comments.</li>
<li>Track user votes – only one of each reaction per user per content item.</li>
<li>Shortcode support – add reactions anywhere in content</li>
</ul>

Emoji Reactions

Add emoji reactions to posts, pages and comments. Inspired by Slack

Moods Addon for Ultimate TinyMCE vs Emoji Reactions