First, you will want to install the terminus-font package:
emerge -av terminus-font
That will put all of the terminus fonts in /usr/share/consolefonts. Now, to test out each font, you can use this:
setfont (whatever font you wish to set here)
That will set the font temporarily to the font you selected. If you need to set it back to default, just type
to set it back to the default.
When you find the font you like, set it in /etc/conf.d/consolefont and add the consolefont script to the runlevel of your choosing.
eselect rc add consolefont default
That should get you a nice looking console font when you boot up.
For reference, the ter-*n.psf.gz fonts look great! I myself use ter-112n.psf.gz for my console font.
Remember, when you put the font in /etc/conf.d/consolefont, do not add the .psf.gz to the font name. Just specify the name itself. Also, the font has to be in /usr/share/consolefonts directory for /etc/conf.d/consolefont to find it.