This plugin allows to filter products , and your users can find exactly what they want to buy. This plugin help to find their ideal product, speed up the purchase processes, and improve the conversion rate of your shopping website. A must have plugin for all shopping websites.
I will recommend you buy this plugin from YITH official website which is here https://yithemes.com/themes/plugins/yith-woocommerce-ajax-product-filter/ But if you are planning to start your shop with a limited amount of money then you can buy from here. Once you hit success, you can get the licence key from them and thus you will get future updates and support from them.