Sherrill sits next to 4 phonetic neighbors — Sheryl, Cheryl, and Sherill are the closest matches by sound. Most share Sherrill's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"burning brightness, the light"
"gift, one who was given"
"gift of God"
"little star, radiant one"
"born on Christmas Day"
"Bright and clear; variant of Serena"
"beloved friend"
"precious, lovely (blend of Alana and Amanda influences)"
Similar sound: These names share phonetic patterns with Sherrill — similar vowel sounds, consonant clusters, or rhythm.
Rhythm: Sherrill is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.