I would personally go with the pixel line, as they just have the google spyware, and not 3 other companies spyware installed on top of Google spyware. Also they generally have decent security updates, and get them faster than most other brands, and then you have the option to switch to grapheneOS should you want too. They are also fairly affordable especially if you are getting them second hand.

I would say there's an argument to be made against duckduckgo with how they're not open source, and the whole allowing Microsoft trackers deal, but it is definitely a better option than google or bing. I don't understand why you're mentioning their browser however, as there are definitely much better alternatives.