RightFont 3 is an extremely useful Mac app that lets you preview, sync, install, and manage fonts on your Mac or Dropbox/Google Drive. Add font organization functionality for Adobe Photoshop, Illustrator, Sketch, etc. Trawling through your fonts to find the perfect one for your needs takes up a ridiculous amount of time, not only searching through ones you've downloaded, but the default ones as well.
Luckily RightFont 3 is the answer to your needs, and quite honestly the perfect font manager.
Check the video below to see and over view, and head to their site to see a full list of features.
RightFont 3 $33.95