Reuven Karasik

This plugin adds two sections to the Products table in WooCommerce:
<ol>
<li>A new column for for each product, showing the shipping class defined for that product (or a proper message is there isn’t one defined) </li>
<li>A new filter box above the table, where you can choose to filter only the products that have a specific shipping class attached to them. You can also filter all the products with no shipping class at all, as a convenient way of making sure all your products have a shipping class set.</li>
</ol>
It also adds filtering to the Orders table in WooCommerce with similar capabilities. This feature considers each order to have one shipping class.

Woo Shipping Class Filter

A WooCommerce Extension that enabled filtering products by Shipping class in the admin panel.

BytePlugs

Paul Plantzos

Simple, free and easy way to display the Shipping Class of each product during Checkout, on the Shopping Cart page, and in Order details.
Want to let your customers know that your product will be shipped in 1 to 3 days, 4 to 10 days, or that the product is bulky? This plugin makes it possible with zero configuration.
Immediately after activation, the plugin displays whatever shipping class is selected in WooCommerce Shipping tab for each product.
The Shipping Class will be displayed: 
* In the shopping cart 
* On the checkout page 
* In order details 
* In WooCommerce emails
Features: 
* Zero configuration needed 
* Works with variable products 
* Now fully compatible with WooCommerce HPOS (High-Performance Order Storage) 
* Provides shortcode [display_shipping_class] for use anywhere on your site 
* Includes Gutenberg block for easy insertion in block editor 
* Includes Elementor widget for seamless integration with Elementor pages 
* Improved security with proper data escaping 
* Lightweight with minimal impact on site performance
Simply upload or download the plugin, hit “activate” and it will automatically show the selected shipping classes of products.

Display Shipping Class in Cart for Woocommerce

Display product shipping classes in Cart, Checkout, and Order details. Now fully compatible with WooCommerce HPOS.

Woo Shipping Class Filter vs Display Shipping Class in Cart for Woocommerce