Yoast - Yoast offers plugins to improve SEO and optimize web sites and blogs.
Advanced Woo Search - Advanced Woo Search - WordPress ajax search plugin for WooCommerce store. Search in product title, description, excerpt, sku, tags, categories, attributes, custom fields, custom taxonomies.
Jackmail - A newsletter plugin for Wordpress.
WebberZone Better Search - Better Search is a WordPress plugin that automatically replaces the default WordPress search with an enhanced contextual based search engine
Wordfence - Comprehensive security plugin for WordPress.
YITH WooCommerce Ajax Search - The powerful search engine is here to simplify your navigation: YITH WooCommerce Ajax Search will offer you immediately the name of the products you look for