Smartphones with "pure" Android

Hello! My smartphone is dying, so I'll soon have to buy a new one. I'd like my new phone to have pure Android, without all the apps that manufactures install. Ideally I'd like to remove the majority of Google services too, but there are some that I can't replace yet, so I'm still dependent on, like google maps. What smartphone do you suggest me? In your opinion, would it be better to buy a smartphone with already stock android or to buy any smartphone, and then replace the OS?