What brand of Android phones would you guys usually go for? anything that gives smooth, AOSP, non-flashy experience?
Pixel phones are great for a clean android experience, but you have to wholeheartedly sell your soul to google.
Midrange motorola phones can also be clean and open.
I have an old refurb pixel 3 I bought to put linage OS on but it was a verizon device and has a locked bootloader. sigh so no alternate android for me.. Anyway I am using it as a daily driver with the stock pixel android package and have zero google accounts. I mainly use f-droid and adb.
Check out Aurora store as an alternative to Play Store
No Google login yet have access to all apps without the hassle of adb
I personally use F-droid + Aurora Store.
https://github.com/ImranR98/Obtainium https://github.com/RikkaApps/Shizuku https://github.com/MuntashirAkon/AppManager