This program is amazing, and has one of the most intuitive ui's I've come across. On top of that, there is a free version! Install your fonts into this program, and they you will have the ability to turn individual fonts on or off, saving valuable system resources for those who have a large font library. The ability to create groups (or collections) of your favorite fonts also helps. NOTE: if you should obtain this program, I ask one small favor: Please reach out to the developer via email, and ask them to consider creating a program that has the same features for brushes that you would use in programs such as Photoshop and/or Gimp. 
https://fontba.se/
https://fontba.se/
