Krzysztof Antoniak

This plugin adds a list of social media buttons. Icons are scalable SVG, they work with any screen size and pixel density.
Currently supported sites: Facebook, Twitter, GitHub, YouTube, LinkedIn, RSS (a link).
Original social media icons by Allan McAvoy. Allan agreed to publish derived work under GPL-3.0.

kantoniak About Me

This plugin adds a list of social media buttons.

Andreas Hecht

Easy to use “About me” profile widget with several settings, which is using your Author Bio, Description and Author Gravatar. You can also link to your “About me” page.
Gravatar can have alignment right, left and none. See Screenshots for more information. The Gravatar can have four different sizes: 45, 65, 85 and 125px.
Alignment none plus Gravatar 125px will center the Gravatar and makes him round. CSS is tested on Twenty Sixteen, Twenty Fifteen, Twenty Fourteen and some other Themes.

AH About Widget

Easy to use "About me" profile widget with several settings, which is using your Author Bio, Description and Author Gravatar.

kantoniak About Me vs AH About Widget