Angharad is lovely.
I know a Ceredig (very rare, I imagine), similar to
Caradog
Anni is described as Finnish on here, but I assume it's Welsh for
Annie?
I saw Nansi somewhere recently, and assume that's also Welsh, for
Nancy, like Betsi for
Betsy.
Betsi certainly gives
Betsy a fresh appeal. Not sure about
Anni - looks incomplete to the eye accustomed to
Annie.