https://woocommerce.com/products/variations-as-single-products-for-woocommerce/

WooCommerce variations display in a drop-down menu on a single product page. The customer must go to the single product page, choose a variation and add it to their cart. For stores that sell products with more variations, showing product variations as single products reduces friction in the purchasing flow. With Variations as Single Products for WooCommerce customers can instantly add multiple variations to their carts. With this plugin, you can save your customers time and improve their browsing experience. You can also hide the parent product from product listing pages.