Israel Curtis

This framework is a collection of classes and functions for handling advanced custom post types cases. With just a few defined arrays, it can create custom post types, taxonomies, their labels, menus, metaboxes, and save routines.
NOTE: this began life as an internal development tool, and as such, does not have much (if any documentation) just yet. It’s not really end-user friendly in its current state. So if you’re not running a site I have built for you personally, you probably don’t need it 😉

Somatic Framework

Adds useful classes for getting the most out of Wordpress' advanced CMS features

Sabuj Kundu

codeboxr

Custom Taxonomy Filter in WordPress Admin Panel Post Listing Plugin will solve or help to add custom taxonomy filter/dropdown for built-in or custom post type listing in Admin panel or dashboard.
<h3>CBX Custom Taxonomy Filter by <a href="http://codeboxr.com/product/custom-taxonomy-filter-in-wordpress-admin-post-listing" rel="nofollow ugc">Codeboxr</a></h3>
<blockquote>
📋 <a href="http://codeboxr.com/product/custom-taxonomy-filter-in-wordpress-admin-post-listing" rel="nofollow ugc">Documentation</a> | 👨‍💻 <a href="https://wordpress.org/support/plugin/custom-taxonomy-filter/" rel="ugc">Free Support</a> | 🤴 <a href="https://codeboxr.com/product/customization-support/" rel="nofollow ugc">Pro Support</a> | 📱 <a href="https://codeboxr.com/contact-us/" rel="nofollow ugc">Contact</a>
</blockquote>
Features:
<ul>
<li>Supports all post types including built-in and custom post types</li>
<li>Supports all taxonomy including custom and built-in taxonomy types</li>
<li>Enable/Disable for any post type</li>
<li>Enable/Disable any taxonomy</li>
</ul>

CBX Custom Taxonomy Filter

UI is nice enough, but it didn't work properly for mee, and support orum seems inactive. Support thread:
https://wordpress.org/support/topic/does-not-work-with-custom-taxonomy?replies=1



Not great

This plugin adds custom taxonomy filter in wordpress admin post listing panel as per setting

Somatic Framework vs CBX Custom Taxonomy Filter