Use custom wallpapers and icons to identify libraries at a glance.
Standard management in Kontakt is often split between two types of content: Ultimate Kontakt Library Organization UPDATED
Point your chosen manager (let’s assume you pick Sononym for its waveform analysis or Navi for its Kontakt-specific tuning) to your root "Kontakt Libraries" folder. Let it run overnight. It will index .nki files and .wav files.