Halley sits next to 4 phonetic neighbors — Haley, Hailey, and Hallie are the closest matches by sound. Most share Halley's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"hay meadow"
"noble Sean"
"God is salvation"
"twin (Thomas variant)"
"beloved, dear"
"excellent, fine"
"eager for battle"
"good man"
"God is gracious"
"ray of light + God is gracious"
"God is my flame"
"griffin-like (legendary creature)"
"army of the people, warrior of the nation"
"world ruler, ruler of the world"
"lover of horses"
"God has bestowed"
"God delivers, divine rescue"
"place of the blue dye plant"
"from the heathland"
"craftsman, smith"
Similar sound: These names share phonetic patterns with Halley — 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 Halley.
Rhythm: Halley is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.