Today's free font of merit is brought to you by the Canadian Territorial Government of Nunavut: Pigiarniq
http://www.gov.nu.ca/english/font/
This is a sans font that looks very nice. Try it out in Coolreader3 with the regular weight and the bold weight. I think you will be pleasantly surprised.
For those who don't use fonts much, remember that this device prefers a naming convention. So add R, B, I, BI respectively for Regular, Bold, Italic and Bold Italic fonts so the device knows what to do. You can delete weights that don't fit those 4 letters. So for example, I renamed the regular Pigiarniq font to PigiarniqR.ttf
I am interested to hear your opinion if you try it.