Ctrl+F shows nobody has mentioned searx yet, so let me - you can have your cake and eat it, too. searx uses modest resources (2G disk/2G RAM, cloud server friendly) and gives you all the results from all the search engines without being tracked in your end-user browser.
Here are some existing public instances to get started (visit Preferences! You can choose your own search engines!) and there are many, many more not listed on this page out there:
Give searx a try - what I like most is that it sees the same top result from 2 sources (say, Google and DDG) and places them as a single entry as first, but then offers a link that neither one of those had (say, Mojeek) as the second result. It actually helps you find more content by spreading out your searches to many engines at the same time and giving the best results grouped.