DigitalME

This plugin adds a simple WordPress button linking to your Discord server. 
You can set your Discord invite URL once in the Settings page, and use the shortcode anywhere in posts, pages, or blocks.
Features: 
* Shortcode [digitalme_discord_button] to place the button anywhere 
* Global settings page for Discord URL under Settings → Discord Button 
* Fixed text (“Join our Discord!”) and styling 
* Lightweight and fully WP.org compliant

DigitalME Join Button for Discord

A simple shortcode and settings page to display a fixed 'Join our Discord!' button.

Md Nurullah

Your visitors can easily visit your Tsu profile and use it as your invitation to the network. You can optionally add a name to be displayed and choose different logo image.
<h3>Features List : (100% Free)</h3>
<ul>
<li>Fully Responsive Design</li>
<li>Customizable Text</li>
<li>Easy Settings & Customization</li>
<li>Easy and user-friendly setup</li>
<li>Logo Uploader</li>
<li>Icon Uploader</li>
<li>Turn On/Off options</li>
<li>Works with any WordPress Theme</li>
<li>Works with any WordPress Version</li>
<li>WordPress Multi-site Supported</li>
<li>BuddyPress Supported</li>
<li>Woo-Commerce Supported</li>
<li>Full Free Plugin</li>
</ul>

Tsu Popup

Add your own tsu ( Social Network ) popup in any website.

DigitalME Join Button for Discord vs Tsu Popup