Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Nalani has been climbing in recent years. All-time it's been given to 7,954 U.S. babies, the 951st most common name by sound today, at an all-time high of 754 in 2025.
Nalani has no common alternate spellings by sound.