The official installation guide (https://wiki.archlinux.org/index.php/Installation_Guide) contains a more verbose description.
I have just copied commands from https://wiki.archlinux.de/title/Anleitung_f%C3%BCr_Einsteiger#Weitere_notwendige_Dienste
It's just to have it with one view after doing a fresh installation
pacman -S acpid ntp dbus cups cronie