Boycott USA Flyer

Same goes for Ecosia though both are now creating a European search index.

They're working on European search indexer along with Ecosia

It's pretty much just Bing and Google no matter what engine you use nowadays. Well, unless you go with Yandex or chinese search engines: https://en.wikipedia.org/wiki/List_of_search_engines - Mojeek is a meta-search engine, but it also crawls the internet itself, which makes it very interesting.. I might give it a go.