Twitter button plus is nice and useful tool to show Twitter tweet button on your website.

Create Twitter follow buttons either by using shortcode or use WordPress widgets to place follow button on your blog sidebars.

Add Twitter Follow Button to Wordpress Posts.

Helps increase social media presence by asking visitors "to pay" for your content with a tweet, plus one, or a like.

Display twitter feeds on your WordPress site by using the Twitter feed widget pro plugin.

A widget that displays your latest tweets from your twitter account. This plugin is compatible with the new Twitter API 1.1