Professional Share is a free WordPress plugin that is optimized for the social media buttons that professionals and B2B companies need.
In your theme, use the do_action('professional_share') function to render the buttons on areas other than posts and pages (e.g. homepage, category pages, etc.).
Use the shortcode [professional_share] to render buttons anywhere in a post or page. Use [professional_share show="false"] to hide the buttons on a per-page/post basis.