Tor Browser is planning to remove Google from the search engine options a user can choose: https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/41835

There some say brave onion + no JS is good: https://search.brave4u7jddbv7cyviptqjc7jusxh72uik7zt6adtckl5f4nwy2v72qd.onion/

Mullvad team seems to be considering 4 possible options:

• Startpage: https://www.startpage.com/
• Mojeek: https://www.mojeek.com/
• Brave Search: https://search.brave.com/
• Metager: https://metager.org/