James Koster

A big UX mistake on many eCommerce web sites is hiding access to the cart. After adding a product to the cart the visitors next logical step is to complete the purchase. Don’t frustrate your customers by making them search for the cart button!
This plugin adds a sitewide tab that displays the number of products in the cart. Clicking the tab or adding a product to the cart from a shop page will reveal the cart contents with a link to the checkout.
There are options in the Customizer to control the display.
Please feel free to contribute on <a href="https://github.com/jameskoster/woocommerce-cart-tab" rel="nofollow ugc">github</a>.

WooCommerce Cart Tab

Adds an offscreen cart to all pages on your site and a fixed tab that displays the number of products in the cart. Adding a product to the cart or cli …

wphobby

WPHobby WooCommerce Mini Cart is a flexible WooCommerce Plugin make you can display your own custom mini shop cart on your WooCommerce Shop Website. 
This plugin comes with built in options that you can use to display different style of mini cart as you needed.
<iframe loading="lazy" title="wphobby woocommerce mini cart" width="750" height="563" src="https://www.youtube.com/embed/wIJX5kQtNyg?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>

WPHobby WooCommerce Mini Cart

Add Mini Cart on your Woocommerce Website.

WooCommerce Cart Tab vs WPHobby WooCommerce Mini Cart