Add search box into layered navigaton

[pegah]

Hello everyone!

Magento 2.1.9: I want to add search box into my layered navigation... i mean that i want to add search on top of each attribute section in layered navigation...

EX: i want to search on material in material attribute filter section : poly... it should search ajax on navigation (material section) and show/filter navigation results to select....

if any body can help me and give me a free extension please help me...

Thank you all in advance

[Aurélien FOUCRET]

I don't know if it can fit your need but this is an out-of-the-box feature of ElasticSuite (github.com/Smile-SA/elasticsuite) :

[Magento231]

You also rnhance Your Customer's Experience With Good Free Layered Navigation