I’ve struggled with the same problem, here is my work-around. I will open Microsoft Word (or just about any program that uses fonts). Type the text I want to use, and use THAT application to make a short list of fonts. I then take that short list and go back to Carbide Create and deal with the tedious process of finding the font in the (semi-sorted) list of fonts.
Or just browse the installed fonts (in windows go to C:\Windows\Fonts) and make your short list from there, but all you see in that preview is “Abg”.
The problem with these methods is that the more fonts you have installed, the harder this method is to manage. If you are a REALLY organized person you could take the time to make your own short list of “CNC friendly” fonts and stick with those.
For those that have V-Carve, does that application do a good job of previewing fonts within a project?