How to read the band →
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).
Major
Major is now well below its former popularity. All-time it's been given to 21,749 U.S. babies, the 985th most common name by sound today, peaking at 1,050 in 2017, with 407 in 2025.
Major has no common alternate spellings by sound.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).