As the title says! My choice, for now, is Leta, directly from Mullvad. I really like because there are no ads by deafult, which is particular important since those ads usually lead to malware.
Otherwise, i like mojeek (same reason).
They both have a strong privacy policy and search results are good enough for me.
Leta: https://leta.mullvad.net/faq
Mojeek: https://www.mojeek.com/about/privacy :)
Its pretty nice but sometimes it directs to a Thai (or other language) instance and while it doesn’t matter for the immediate search results it can be annoying when you wanted to check images for example.
Doesn’t mean not to use it but it surprised me a couple times so far.
My guess is those instances are misconfigured, didn’t set their language correctly