I’ve recently found Qwant which I can recommend trying out. It’s a European search engine with it’s own index, independent from Google or Bing, privacy focused and free. The search results are pretty good, not sure if that’s because it’s just not affected by SEO focusing on Google.
The biggest issue I have with all of the alternatives is that Google Maps is just so much better than anything and integrating Maps results is extremely useful. Qwant integrates with OpenStreetMap but obviously that’s just not the same.