Which is the best tool to let your customer search product fast in magento 2?

Instant Search Magento 2 extension provides users with quick drop-down suggestions on products, categories, content page or blog posts when they type in the keywords.

Get details: https://www.magesolution.com/instant-search.html

Ability to display search results of products, categories, CMS page or Blog (compatible with Blog for Magento 2 extension)
Ability to adjust number of search results in drop-down list
Admin is able to turn the function on/ off and re-arrange the position of each section in drop-down list
Lightning speed search by Ajax without re-loading page