Adding a new search value based on a product feature

[Rudy69]

Hello,
On Prestashop 1.7.6.5, I would like to know if it was possible to propose a new choice of sorting products in the dropdown list to customers from a feature I created.

Each product offers this new feature "ranking" which contains a number from 1 to n.
The sorting of products would then be based on this feature.

I have searched for "modules_facetedsearch\src\Product\SearchProvider.php" and more precisely for the "getAvailableSortOrders()" function but I have no idea how to set up this solution.

If you have any clues, I would be grateful.

Sincerely