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.

Nayeem Hyder

Accordion’s wp is a Customizable responsive Jquery WordPress plugin that gives you a new experience with your website.
You will find a <a href="https://plugins-demo.nayeemriddhi.info/nice-accor/" rel="nofollow ugc">Demo</a> here
Plugin Features 
<ul>
<li>Customizable responsive.</li>
<li>All Browser support.</li>
<li>Unlimited Accordions anywhere in the theme.</li>
<li>Use via short-code.</li>
<li>You Can Change Color,Width.</li>
<li>You Can Sort With Up and Down Arrow.</li>
<li>WP Editor for accordion content.</li>
<li>Custom Title background color.</li>
<li>Custom Title Font color.</li>
<li>Custom Content Background Color.</li>
<li>Custom Content Font Color.</li>
<li>Add and remove accordion item from backend.</li>
<li>Highly customized for User Experience.</li>
<li>And Many More options….</li>
</ul>

Nice Accordion

Nice Accordion With Shortcode for WordPress.

Smooth Accordion vs Nice Accordion