Henley sits next to 4 phonetic neighbors — Hailey, Harley, and Berkley are the closest matches by sound. Most share Henley's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"high meadow"
"son of Ellis, descendant of Elias"
"precious green gemstone"
"holy, blessed"
"lily"
"pledged to God, God is my oath"
"youthful, downy-bearded"
"precious gemstone formed in oysters"
"exalted, noble, sublime"
"youthful goddess, keeper of immortality"
"maiden, girl"
"beloved, wished-for child"
"white island"
"beautiful picture, painted beauty"
"ocean, shell"
"judge, arbiter"
"chalk wharf, chalk port"
"flirtatious, charming"
"hunter, game keeper"
"sun"
"famous ruler"
Similar sound: These names share phonetic patterns with Henley — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Henley.
Rhythm: Henley is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.