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).
Manuel
Manuel is now well below its former popularity. All-time it's been given to 192,742 U.S. babies, the 676th most common name by sound today, peaking at 2,665 in 2005, with 860 in 2025.
Manuel has no common alternate spellings by sound.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).