DDG has gotten much better but it still falls behind if you do targeted searches based on time, or do a lot of image searches, or reverse image searches, etc etc.
I’ve found that Bing is surprisingly good. So is https://www.startpage.com which is as security-focused as DuckDuckGo, but also anonymously blends in Google search results (Google gets the request from StartPage so they don’t know which user is requesting) for good results as well.
When searching ‘macpowerusers’ Google and StartPage give identical results, Bing and DDG aren’t bad, but I personally think they don’t give the best target results (a top result for the last two is the t shirt sales?)
