Most search engines make money with ads, including DDG. Plus, DDG has in the past explicitly whitelisted trackers from MS so I wouldn't trust them. They are definitely better than Google though (as low of a bar that is).
SearXNG (https://searx.space/) seems to be the best option from a privacy standpoint I found so far.
MetaGer is a metasearch engine focused on protecting users' privacy. Based in Germany, and hosted as a cooperation between the German NGO 'SUMA-EV - Association for Free Access to Knowledge' and the University of Hannover, the system is built on 24 small-scale web crawlers under MetaGer's own control. In September 2013, MetaGer launched MetaGer.net, an English-language version of their search engine.
That you can hide yourself behind our proxyserver just by opening the result anonymously? Use "OPEN ANONYMOUSLY"; this also affects the following links.