Ruven

This plugin registers a widget to display links to your social networks. 
It uses font icons to display the links.
The following networks are supported:
<ul>
<li>Dribbble</li>
<li>Facebook</li>
<li>Flickr</li>
<li>GitHub</li>
<li>Google+</li>
<li>Instagram</li>
<li>LinkedIn</li>
<li>Pinterest</li>
<li>RSS</li>
<li>StumbleUpon</li>
<li>Tumblr</li>
<li>Twitter</li>
<li>Vimeo</li>
<li>YouTube</li>
</ul>

Ruven Themes: Social Widget

RT Social Widget adds a widget to display links to your social networks.

codebari

FloatySocial is a social sharing plugin for your website that creates a floating sidebar to make it easy for visitors to share your content on social media. Customize the look of the icons and increase your social media presence with FloatySocial!
It’s simple, unique, and the best WordPress plugin for floating social icons. 
FloatySocial Plugin allows you to add the following social icons to your website 
<ul>
<li>Facebook</li>
<li>Instagram</li>
<li>Twitter</li>
<li>LinkedIn</li>
<li>YouTube</li>
<li>RSS</li>
<li>Pinterest</li>
<li>Behance</li>
<li>Github</li>
<li>Reddit</li>
<li>Stack OverFlow</li>
<li>Tumblr</li>
<li>Vine</li>
</ul>

FloatySocial – Awesome Social Floating Sidebar

This plugin lets you add floating sidebar icons to your site that link directly to your social media profiles.

Ruven Themes: Social Widget vs FloatySocial – Awesome Social Floating Sidebar