UserElements

Categorise to make your products easier to find (search for) and discover (stumble across). Nest categories in sub-categories, no theme changes or coding needed. Sticky category for WooCommerce that will improve customer buying experience and increase conversions.
<h3>Features And Options:</h3>
<ul>
<li>Fully Customizable
<ul>
<li>Choose category & sub category</li>
<li>Display product count</li>
<li>Customize color</li>
</ul>
</li>
</ul>

Floating Product Category for WooCommerce

Floating Product Category for WooCommerce is a plugin to display WooCommerce Categories. With floating category sidebar users can access WooCommerce p …

AwesomeTOGI

With the Product Category Tree plugin, you can now manage your Woocommerce product categories in a tree structure. 
This gives you a much better overview of your product categories – especially if you have a large amount of product categories with child categories.
The tree structure makes it easy to find the category you are searching for, as you simply expand and collapse the parent categories.
We have even added a drag ‘n’ drop functionality that makes it easy for you to change the order of your product categories. In quick edit you can add category image and change category parent.
Main features:
<ul>
<li>Sort categories via drag ‘n’ drop</li>
<li>Expand and collapse categories for a better overview</li>
<li>‘Expand all’ and ‘Collapse all’ available</li>
<li>Quick edit to change name and slug</li>
<li>Quick edit to change category image.</li>
<li>Quick edit to change change category parent.</li>
<li>
Supports an unlimited number of categories and subcategories.
Compatible with Woocommerce 3.4.4 and higher.
</li>
</ul>
Now available in the pro version!
<ul>
<li>Tree structure for product categories also available when you create/edit products</li>
<li>Disable an entire product category in one click</li>
</ul>
<a href="https://awesometogi.com/product-category-tree-plugin-for-wordpress/" rel="nofollow ugc">Read more about the pro version here</a>

Product Category Tree

Manage your Woocommerce product categories easily with this flexible Category Tree plugin

Floating Product Category for WooCommerce vs Product Category Tree