Miley sits next to 4 phonetic neighbors — Riley, Kylie, and Bailey are the closest matches by sound. Most share Miley's American English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"smiley, cheerful (derived from nickname)"
"heavenly, royal"
"the largest, supreme"
"bird + grace"
"beloved, exalted crown"
"young servant, page boy"
"one who resembles God"
"a day's travel, voyage"
"crowned one"
"the winter season"
"good, fine"
"from Macey (Normandy place name)"
"beloved, much loved"
"fleet of ships"
"great lord, magnificent ruler"
"dark, black-haired"
"spiritual gladness, divine blessing"
"laurel tree"
"sea battle, sea fighter"
"clear (as in clear skies)"
"small bird (the wren)"
Similar sound: These names share phonetic patterns with Miley — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have American English origins, giving them the same cultural heritage as Miley.
Rhythm: Miley is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.