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).
Asher is one of the fastest-rising names in America right now. All-time it's been given to 112,690 U.S. babies, the 50th most common name by sound today, peaking at 8,527 in 2022, with 7,519 in 2025.
Asher has no common alternate spellings by sound.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).