For the past few weeks, I've been giving Brave Search a good college try. I've been doing this in an effort to reduce my dependency on Google, as well as to reduce my exposure to their advertising and profiling mechanisms. So far, I've been pleasantly surprised. The majority of my searches are of a technical nature (usually in regards to my work), and the search results generally have exactly what I'm looking for. Their recently added Discussions feature has been particularly helpful to find results from sites like Stack Overflow and Reddit.
It isn't perfect, however; a few recent searches on some esoteric technical topics (7-zip performance in Ubuntu, for example) left me mildly disappointed. However, I've been pleased enough that I think I'll start using this as my go-to search engine. It works great in the Brave browser, which I am also now using as my primary driver.