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).
Eliza has climbed over the years and is holding near its high. All-time it's been given to 70,771 U.S. babies, the 331st most common name by sound today, peaking at 2,490 in 2021, with 2,375 in 2025.
Eliza has no common alternate spellings by sound. Spellings sometimes heard the same way: Aliza.