I work with VirtualBox a lot, and I use a lot of TTY consoles, but I never like the size and type of font that usually appears. For example, the one for Ubuntu 18.0.4.3 is as I show::
To change it we execute the command as root:
dpkg-reconfigure console-setup
Appearing a menu where we first choose the encoding. We have to move with the tab to change from one component of the screen menu to another:
When pressing Ok the menu screen appears where the character set is specified:
Where specifying the character set and pressing Ok we get the font screen to use, and where I change from VGA to Terminus type:
Accepting the change in Ok, the last screen of the menu appears where we specify the font size and where I change from 8x16 to 8x14:
When you press Ok, the execution of the changes appears in the tty console and you can now see the change made:
We can check it better by executing a 'screen clear' and then any command like an 'ls -la':