Bibiai

If you need all your products to have the same image, this plugin is perfect for that, and it doesn’t require any previous adjustment.
It automatically assigns the image of the category to all products that are within that category. When you create or modify a product it will be assigned automatically.

Product & Category Image

If you need all your products to have the same image, this plugin is perfect for that, and it doesn't require any previous adjustment.

Poly Plugins

Giving your customers relevant information when you have sales, inventory problems, or important information related to the category your customers are browsing is made easy with Product Categories for WooCommerce.
Free Version:
<ul>
<li>Target multiple categories</li>
<li>Allows a, em, strong, and span html tags</li>
</ul>
<a href="https://www.polyplugins.com/product/category-enhancements-for-woocommerce/" title="Category Enhancements for WooCommerce Pro by Poly Plugins" rel="nofollow ugc">Enhanced Version</a>:
<ul>
<li>Add multiple notices to specified categories</li>
<li>Add notices to products in specific categories</li>
<li>Prevent checkout in specified categories based on state</li>
<li>Modify category prices</li>
<li>Wysiwig editor (Coming Soon)</li>
</ul>

Category Notices for WooCommerce

Easily display notices on WooCommerce category pages you specify. Give your customers information on sales, stock issues, news, and more.

Product & Category Image vs Category Notices for WooCommerce