

Late to reply but: from what I heard, Kagi is really good at search (at least when it comes to filters and the such, not sure about base results), but it’s paid so that’s a disadvantage (and also a plus since you don’t get ads nor is your data being sold off), and it’s US based. DuckDuckGo also uses Bing but I guess they have more sources than just them. In my experience it’s about the same, maybe a bit better on DDG, both have shebangs (! for DDG, # for Ecosia) which I find extremely useful.
Late reply but: Ecosia lets you choose between Google or Bing, but I guess that isn’t really your point. The main thing is it anonymises your searches, so you do get some additional privacy. Additionally, the hope is that one day they build their own index. They just recently announced that they’re gonna start one with Qwant.