Rob Scott

<p>Easy to use plugin that adds custom fields to posts to easily add Twitter Card metadata to your posts. This plugin requires Advanced Custom Fields by Elliot Condon.</p>
<h3>Compatibility</h3>
<p>This add-on will work with:<br />
1. Advanced Custom Fields version 4 and up<br />
2. WordPress version 3.8 and up</p>


Eazy Twitter Cards For Posts

Easy to use plugin that adds custom fields to posts to add Twitter Card metadata to posts.

shawfactor

<p>This plugins creates twitter meta tags automatically, it will create different types of tags based on the post format set for the post.</p>


LH Twitter Meta Tags

Adds to twitter cards meta tags to head with logic based on post formats

Eazy Twitter Cards For Posts vs LH Twitter Meta Tags