Sector Social Share

The Sector Social Share module — part of the Starter Kit in Sector 10 — is built on the Drupal core Block module and the Drupal contribution module: AddtoAny.

Sector Social Share includes:

• an opt-in module AddToAny share buttons module and block which is placed in the block layout when the Sector Social Share module is enabled. 
• The block is placed last in the main content region and classes like "my-2" can be added, to add margins, in the block's config.
• We added three default, customisable "service buttons" with a #000 (dark) theme.

Service Buttons HTML code:
<a class="a2a_button_linkedin"></a>
<a class="a2a_button_twitter"></a>
<a class="a2a_button_email"></a>

Additional Javascript:
- a2a_config.icon_color = "#000";

Related entities and configuration 

• /admin/structure/block/manage/sector_starter_addtoanysharebuttons
• /admin/config/services/addtoany

Sector permissions for AddToAny

• /admin/people/permissions#module-addtoany

Features and Functionality

• AddToAny's universal sharing button with SVG icons for many services like Facebook, Twitter, Pinterest, WhatsApp, Reddit, SMS, email and many more.
• The share menu is translated into over 50 languages
• Allows customisation globally or per block.

Further documentation:

AddtoAny module and https://www.addtoany.com/buttons/customize/drupal.

A worthy read about data privacy when using AddToAny.
TLDR: AddToAny is GDPR compliant. "By design, AddToAny does not store personal data."