I would remove Qwant from this list, because they share your data with Bing, their privacy policy have contradicting statements and include:

Qwant may transfer to this partner the following pseudonymous data related to your query:
– The keywords of the search;
– Information about the browser you are using (the User Agent);
– The first three bytes of your IP address;
– The approximate geographical area from which the search originated, at the level of a region or city;
– The salt hash generated from your IP address, your User Agent and a salt that changes at the latest every 3 months;
– A random token generated by Qwant.

..Qwant may also collect and transfer to this partner your full IP address.
This processing is in the legitimate interest of Microsoft Ireland Operations Limited (article 6.1.f) to secure and make its services more reliable.

This data is transferred to this partner within the European Union, and may be retained in accordance with Bing’s Privacy Policy for a maximum period of 18 months.

Please, also review this if you plan to use qwant:
https://en.m.wikipedia.org/wiki/Qwant#Controversies