I use Ecosia nearly exclusively.

I don’t like it as much as DDG; which has a somewhat better privacy focus, more widgets, and better support for “bangs”.
But the bangs I really care about are still there, it’s European and working on a European search index along with Quant, and the trees are pretty cool too.

As is it still relies on either Bing or Google for the results, but oh well. Rather through Ecosia than directly through those two.