Organizing and managing fonts is a painful task without any apps to manage them. There are a lot of font managers available for free or paid, you can see the list here. But be careful as some of them are not updated or have been discontinued by their respective developers.
I've been using NexusFont for quite a long time. It helps me manage and choose what fonts I need for a certain task. Since I am a graphic designer I use different fonts a lot. I tried both FontBase and NexusFont, but I am used to NexusFont as it is easy and straightforward.
Until my font collection became bigger and NexusFont wasn't be able to handle large font collections. NexusFont became too slow to open and viewing fonts on the panel is difficult as the app hangs. Then I decided to try FontBase. Though different from NexusFont's interface, FontBase is easy to use as well. FontBase can handle my huge font collections and does not have any problem when viewing fonts. As of this writing, I don't find any issues when using the app.
More about NexusFont
Here are some information from the creator of NexusFont:
best font manager for Windows
If you are a designer using many fonts, nexusfont is a must have application.
You can manage/compare/choose fonts with well organized features.
You don't need to install all fonts to the system. You can load fonts you are working with only.
It's simple and easy!
This application is free for everyone. You may use in a company.
The app comes in 2 types: an installer and a portable version. You may download the files here and look for nexusfont. Download buttons are on the right side of the page.
Note of the *, some Windows 10 update slows down the app when loading fonts. Just disable the Windows Font Cache Service. Also note that there is no option for the application to run when the computer starts, you have to copy the application shortcut and place it manually to the Startup folder.
For details on how to use NexusFont, visit this link for more information.
More about FontBase
On FontBase's website:
Font management. Perfected.
All platforms. Professional features. Beautiful UI. Totally free. FontBase is the font manager of the new generation, built by designers, for designers.
FontBase is compatible with Windows, Mac, and Linux. It is free but also has a paid option.
Want to know more about FontBase, please visit their website here.