Translations:Make GRUB menu & boot-up/down fonts bigger/47/en
From Manjaro
So the first thing that you have to do (before I find out from someone in the Manjaro forum where the consolefonts directory exists) is see whether you have to clone the directory from /usr/share/kbd/ to /usr/share/ or not. After that is sorted, then you need to choose a font. You won't like doing that. Here is a link to an old page (far fewer suitable fonts & its still too many)