I use Edge as my browser now on android, and I keep Bing as default for basic searches simply for the reward points and cool daily wallpapers. It's actually better than Google for a lot of everday stuff now, but damn is it useless when you're looking for anything "technical".
For serious stuff I use startpage and I have done for a very, very, long time. Just beware that they did change ownership a year or so ago, and are now majority owned by an advertising company, make of that what you will.
I'm not a fan of DDG. Qwant was good last time I used it.
Occasionally I use Google when I actually want a spammy result.