WooCommerce Partial COD - Payment Gateway Restrictions & Fees is a powerful, flexible and easy-to-use WooCommerce extension.
Demo: https://codecanyon.net/item/woocommerce-partial-cod-payment-gateway-restrictions-fees/41741012
WooCommerce Deposits is a premium WordPress and WooCommerce plugin for handling partial payments.
Demo: https://codecanyon.net/item/woocommerce-deposits-partial-payments-plugin/9249233
WooCommerce Deposits - Partial Payments Pro plugin helps the customers to pay a fixed price, percentage, partial payments, or deposits, for the products purchased from your Woocommerce store.
Demo: https://acowebs.com/woocommerce-deposits-partial-payments/