theode

With the use of shortcodes it is possible to react to the content by emojis. 
So you install the plugin and create new emoji with a title an emoji itself, a count field and an initial count, to fake the initial value of the clicked emoji. 
The shortcake is [emojized id=“8” count=“true”] (or false or empty)
In the new version you can limit votes to one per user.
This plugin demands WP REST API plugin.
It has the same approach as the plugin “Emoji Reactions” 
https://wordpress.org/plugins/emoji-reactions/ 
but that seems to be discontinued.
https://www.youtube.com/watch?v=VaNw_Xh35NM
So have fun with emojis.

Emojized

Emojized allows visitors to a WordPress site to rate and react to content using Emojis. Because text without them is  🅱🅾®ℹ️🆖

Mian Shahzad Raza

WP Academy

This will add powerful social features to your WordPress website. Engage with your website visitors by giving them the opportunity to react with your content. This plugin will all like dislike buttons with like vs dislike bar or you can add emoji reactions like Facebook. 
Both visitors and logged-in members can react to your posts. Not only reactions but a social sharing bar as well so no more different plugins. 
This plugin also has a widget to show most liked or disliked posts anywhere you like.
This plugin is my first project, so feel free to provide feedback via support forums. You can also contribute to help me improve this open-source project.
Github repository: If yu want to contribute to this project you can fork this <a href="https://github.com/wpacademy/wpac-like-system/" title="Github Repository for WPAC Like System" rel="nofollow ugc">Github Repository</a>
<h4>Features</h4>
<ul>
<li>Like & Dislike Buttons </li>
<li>Like vs Dislike bar</li>
<li>Most Liked or Disliked Posts</li>
<li>Handy shortcodes</li>
<li>Reaction system with 2 styles of emojis</li>
<li>Social Sharing</li>
</ul>
<h4>Shortcodes</h4>
Display Like & Dislike buttons in post or page.
<pre><code>[WPAC_LIKE_SYSTEM]
</code></pre>
Return Like/Dislike count for current post being viewed.
<pre><code>[WPAC_LIKE_COUNT] [WPAC_DISLIKE_COUNT]
</code></pre>
Return Like/Dislike count for given post ID.
<pre><code>[WPAC_LIKE_COUNT id="123"] [WPAC_DISLIKE_COUNT id="123"]
</code></pre>
Return Like/Dislike count wrapped in a string, use <code>%</code> where you want to display count value.
<pre><code>[WPAC_LIKE_COUNT string="Liked % times"] [WPAC_DISLIKE_COUNT string="Disliked % times"]
</code></pre>
Use String with post id
<pre><code>[WPAC_LIKE_COUNT id="123" string="Liked % times"] [WPAC_DISLIKE_COUNT id="123" string="Disiked % times"]
</code></pre>
<h4>Credits</h4>
Libraries and resources used in this project. 
<a href="https://jquery.com" rel="nofollow ugc">jQuery</a>, <a href="https://fontawesome.com/" rel="nofollow ugc">FontAwesome</a>, <a href="https://fonts.google.com/" rel="nofollow ugc">Google WebFonts</a>

WPAC Social Tools – Like, React & Share

The Most Simple WordPress Post Like, Dislike & Reaction System with Social Sharing.

Emojized vs WPAC Social Tools – Like, React & Share