ruudkok

With this plugin you can add the new Tweet button from Twitter to every post, and every page. The plugin is fully customizable:
<ul>
<li>Choose where to display the button (top,bottom,left,right), up to 2 times each post/page</li>
<li>Choose when to display the button (posts, pages, both or everywhere)</li>
<li>Select the type of button you like (horizontal count, vertical count, or no count)</li>
<li>Set the margins between the Twitter Button and surrounding content</li>
<li>Select a twitter account (if any) which you want to be mentioned in each tweet (e.g. via @ruudkok)</li>
</ul>

WP Twitter Button

This plugin allows you to add the new Twitter button(s) to your blog. You can choose the type of button and set where to display the buttons.

Web Guy

Add a Twitter style love/like/upvote button to your content.
By default, a love button is added to the bottom of the post content area, which can easily be styled with CSS.
Or use a simple shortcode:
<pre><code>[love]
</code></pre>
Or use a simple shortcode with the following available parameter:
<pre><code>[love url="https://example.com/"]
</code></pre>
Or use the direct HTML code (with additional <a href="https://github.com/webguyio/love" rel="nofollow ugc">configuration options</a>):
<pre><code><div class="love"><a class="love-button"></a></div>
</code></pre>

Love Button

Add a Twitter style love/like/upvote button to your content.

WP Twitter Button vs Love Button