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).
Brylee has been slowly declining from its former popularity. All-time it's been given to 24,302 U.S. babies, the 1,051st most common name by sound today, peaking at 1,598 in 2009, with 460 in 2025.
By sound, Brylee also includes the spellings Briley, Bryleigh.