ohh well, DDG also is more of a meta-search engine, getting stuff mainly from Bing, so I wouldn't go as far as rejecting FLOSS meta-search engines such as Searx but accepting DDG, see:
BTW, no privacy oriented search engine with all indexes of its own will give you good results as of now, that I know of. So whether a mixture of a private oriented meta-search engine with its own indexes, FLOSS, might become a good alternative. DDG mainly as a meta-search engine doesn't even give you the control Searx provides to you, as to where to get the search results from.
Another side effect of DDG, is being a non FLOSS per profit project, based on US (with all US regulations applying).
So perhaps not the answer you were looking for, but to me, Searx, whether self hosted or using instances out there (even better if out of the extended 5 eyes, just in case), is currently what I settled to for search engine, :)