Android is very customizable when we have the root capability, the scope is too large for exploration that I usually have the following procedure for my rooted phone.

Magisk
– EnergizedProtection
https://github.com/Magisk-Modules-Repo/energizedprotection
– App Systemizer
https://github.com/Magisk-Modules-Repo/terminal_systemizer
– CloudflareDNS4Magisk
https://github.com/Magisk-Modules-Repo/CloudflareDNS4Magisk
– SSH for Magisk
https://github.com/Magisk-Modules-Repo/ssh
– XMLpak
https://github.com/Magisk-Modules-Repo/xmlpak
– Universal GMS Doze
TBD
– Systemless Host
Enable in Magisk -> Settings

PlayStore
– MacroDroid
– Migrate – ROM data backup
– AFWall+
– Shizuku
– Logcat Extreme

Aurora Store

FDroid
– Termux
– – termux-setup-storage
– – apt update
– – apt upgrade -y
– – apt install git wget curl zip unzip nano vim nmap python python2 python3

Others from Play Store
– Gboard
– Chrome
– VLC