apt-source
There are 3 repositories under apt-source topic.
lagged/apt-spy2
apt-spy for Ubuntu
vegardit/fast-apt-mirror.sh
fast-apt-mirror.sh is a self-contained Bash script that helps you to easily and quickly determine and configure a fast APT repository mirror on Debian, Ubuntu and Pop!_OS systems.
angelfsepulveda/apt-remove-duplicate-source
apt-remove-duplicate-source