FontExplorer

FontExplorer X Pro is Monotype's most advanced font management solution. Well known for its intuitive, modern user interface that presents type in an attractive way, this product makes font discovery fun and easy. The app's full feature set includes numerous tools for discovering and organizing fonts, as well as activation controls that ensure fonts only work when needed. This speeds up the creative workflow by minimizing the list of options in the font menu

I love the search function and filtering abilities on FontExplorer X. It's also easy to activate fonts and import them into Adobe products.

The nicest part is that I can change fonts whenever I want.