One place I love digging for unique female character names is mythology and folklore. Norse, Greek, and Celtic myths are packed with powerful names like Freya, Artemis, or Morrigan that instantly give a character depth. For fantasy games, I often tweak these—maybe 'Freydis' instead of Freya, or 'Artemisa' to sound more exotic.
Historical figures are another goldmine—names like Boudicca, Zenobia, or Tomoe Gozen have this fierce, unforgettable energy. I'll sometimes mash syllables from different cultures (like 'Shizuka' + 'Eleanor' = 'Shizaenor') to create something fresh. My trick is saying the name out loud to test its 'click' factor—if it feels satisfying to yell in battle, it’s a keeper!