I love WooCommerce but handling many variations can be a drag. I have been in your position and needed the possibility to show prices in variation dropdowns. While looking for solutions I found the slightly clumsy named plugin Variation Price Hints (https://codecanyon.net/item/woocommerce-variation-price-hints/18772255). It can display prices (or price differences) in select option even with multiple variation attributes. Hope this helps! Chelsea
