This Plugin remove prices, removes the add to cart button or replaces it with an enquiry form. Only if you want, because there are more settings than you could expect! You have a product / category you still want to sell? Just put it inside the exclusion list!
Demo: https://codecanyon.net/item/woocommerce-product-catalog-mode/14518494
GoogleDrive: #WooCommerce Product Catalog Mode v1.6.9
Mediafire.com: #WooCommerce Product Catalog Mode v1.6.9
Cutedrive.com: #WooCommerce Product Catalog Mode v1.6.9