Fetch live pacman-mirrors and sort them by speed
Uses
rankmirrors(aur) package to sort live mirrors from the mirrorlist and returns the top five.
Usage
Needs rankmirrors from the AUR installed.
Generate the list:
curl -s "https://archlinux.org/mirrorlist/?country=DE&protocol=https&use_mirror_status=on" | sed -e 's/^#Server/Server/' -e '/^#/d' | rankmirrors -n 5 -
Put it in /etc/pacman.d/mirrorlist and update the package cache.