I work with a number of brands, each with their own brand guidelines and specific font sets. Every time I start a new InDesign project for one of the brands, I have to sort through my extensive list of fonts to find just the ones I can use for that project. With colors, I can save a swatch library and import that into a new document any time, easy peasy. I would love to be able to do something similar for fonts…maybe just being able to turn on/off a font library or a font set within InDesign so I can only see the fonts I need for that brand. I'm working with InDesign CS6. Any ideas?
Look into font managers. I can't make specific recommendations, and what's available depends on your computer platform.