Everyone has their own use case, needs and preferences My thought is that you have the following options - not in any order as you will have your preferences
- Buy a Pixel and install Graphene
- See if you can install Linage OS, or buy another phone that can
- Universal android debloater / ADB (not as tricky as it seems) https://github.com/0x192/universal-android-debloater
- Search and disable apps you don't want (limited at best)
- Install RethinkDNS & Firewall.
What did I do? On my Samsung tablet, I used Universal Android Debloater AND run RethinkDNS & Firewall. Not as good as Graphene, but cheap / free and 90% of the same.