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.
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/VaNw_Xh35NM?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
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🆖

someplus

Some Plus Content Reactions allows your visitors to react to your content with emoji reactions like 👍 Like, ❤️ Love, 😂 Haha, 😮 Wow, 😢 Sad, and 😠 Angry.
<h4>Features</h4>
<ul>
<li>Multiple Reaction Types – Six default emoji reactions out of the box</li>
<li>Customizable Reactions – Add, remove, or modify reaction types</li>
<li>Post Type Support – Enable reactions for any public post type</li>
<li>Guest Reactions – Allow or restrict reactions to logged-in users</li>
<li>Auto Placement – Automatically add reactions before or after content</li>
<li>Shortcode Support – Use [spcr_reactions] to place reactions anywhere</li>
<li>Multiple Display Styles – Horizontal bar, inline buttons, or floating sidebar</li>
<li>Modern Design – Beautiful animations and responsive layout</li>
<li>Dark Mode Support – Automatically adapts to user’s system preference</li>
<li>Lightweight – Minimal impact on page load speed</li>
</ul>
<h4>Usage</h4>
<ol>
<li>Go to Settings → Content Reactions</li>
<li>Select which post types should have reactions</li>
<li>Customize reaction types if desired</li>
<li>Save settings</li>
</ol>
Reactions will automatically appear on your content. Alternatively, use the shortcode:
<pre><code>[spcr_reactions] - Display reactions for current post
[spcr_reactions post_id="123"] - Display reactions for specific post
</code></pre>

Some Plus Content Reactions

Add emoji reactions to your posts and pages. Let your visitors express their feelings about your content.

Emojized vs Some Plus Content Reactions