Zakir

Simple and easy collapse accordion plugin for post and page. You can easily insert accordion in your post or page. You don’t need to remember the shortcode. Just install and you will find a shortcode button in your WordPress TinyMCE editor.
I am available for WordPress theme development work. Do you want to start a project with me? Please contact – 
zakird46@gmail.com

Smooth Accordion

License: GPLv2 or later License URI: http://www.gnu.org/licenses/gpl-2.0.html Simple and easy collapse accordion plugin for post and page.

shadowvault

Simple and easy collapse accordion plugin for post and page. This plugin also generates a shortcode button in your WordPress TinyMCE editor.

Super Accordion

Very easy and powerful collapsible accordion plugin for post and page.

Smooth Accordion vs Super Accordion