I tend to like the “bangs” feature that DuckDuckGo offers when it’s set as my browser’s default. Basically by putting !+prefix it automatically redirects your search to a different website. !g will do Google, !b will do Bing, !yt will do YouTube, etc… And it’s quite extensive. Currently, DDG claims to have 13,564 bangs you can use, so if there’s some website with a search bar, chances are it can be banged from DDG.
The search engine from my use over the last 4-6 years generally provides me with “good enough” search results and I enjoy the interface itself, as well as the sorting options when searching images. Every now and then, if i don’t get the results I want, I can just bang a different search engine (I’m just starting to realize the repercussions of using “bang” as a verb…).