Qwant is a good option. AFAIK you can use Android without logging in to a Google account. You can use Aurora Store to anonymously download apps from the Play Store without having to log in. If you have to access Gmail, don’t use their app, it’s full of trackers. Use K-9 Mail instead. For YouTube, you can use LibreTube or NewPipe on Android and Invidious or Piped in your browser. SmartTubeNext is a great option for Android TV. You can also use the Universal Android Debloater to remove any Google apps and services you don’t need.