Android itself does plenty of data collection on its own; I'm not sure if the brand really makes much of a difference here, unfortunately.

I installed Sailfish OS on a Sony Xperia phone a few years ago, and that worked well enough. I had a couple of Android apps that I needed to use for work, and Sailfish has some kind of Android environment built in that lets you run Android apps. I worked for me, but I didn't try any payment apps or others that tend to be picky about what type of phone you're using.