WPDO

Add the slack style emoji to posts, pages or comments.
<h4>Features:</h4>
<ul>
<li>
React with emojis to any post or comment.
</li>
<li>
Post View counter. Compatible with all cache plugins! Easy to use. Automatically exclude bots.
</li>
<li>
Disable comment on any post type (pages, posts, attachments).
</li>
<li>
Most Viewed widget. Recent Reacted Emoji Post widget.
</li>
<li>
Allow guests reaction or logged-in user reaction only.
</li>
<li>
GDPR compliant. With this feature turned on, all logged IPs get obfuscated (md5-hashed).
</li>
</ul>
<h4>Post View</h4>
<ol>
<li>
Edit <code>wp-content/themes/<YOUR THEME>/index.php</code> or <code>archive.php</code>/<code>single.php</code>/<code>post.php</code>/<code>page.php</code>.
</li>
<li>
In the loop <code>while ( have_posts() ) {</code> or anywhere you want to show the views, add the following codes: <code>do_action( 'remoji_postview' );</code>.
</li>
</ol>
API
To show postview in themes/plugins, use <code>do_action( 'remoji_postview', $the_post_id_to_inquire );</code>.
Shortcode [views] available
Use <code>[views]</code> or <code>[views id="3"]</code>(To show the views of post ID 3) in your editor.

Remoji – Post/Comment Reaction and Enhancement

I like this because it allows one to react in many different ways in posts and comments. And it looks nice and doesn't take up a lot of space. One issue though is if you turn on IP privacy, someone is able to react repeatedly. If improvements are considered, then I suggest the following:

1) Add an option to track by logged in user, and also that would mean only people logged in can use it.
2) That would solve the reacting over and over again but for those would want to allow visitors to react then there would have to be another way to prevent excessive reacting. Or, at least a warning that if you turn on IP obfuscation then people will be able to react over and over. 
3) I hope you can one day add the ability to delete reactions.
4) A widget showing most reacted posts would be cool too.

Very nice

Reactive emoji. Allow visitors to add emoji reactions to your posts and comments. Disable comment for pages, posts.

Krigus

Plugin WP Views Counter is counting views of pages or posts in your blog
In Edit Post screen plugin shows views of current post
You can manage settings of plugin in Settings->Page Views screen 
Plugin settings: 
* Post types, in which plugin is counting views 
* Show additional statistic for authorized users in admin panel or no
Plugin creating widget, in which users can see the most viewed posts of the blog 
Widget settings: 
* Widget name 
* Posts count – count of posts in widget 
* Show numeric value of viewsin widget or no

WP Views Counter

Plugin WP Views Counter is counting views of pages or posts in your blog

Remoji – Post/Comment Reaction and Enhancement vs WP Views Counter