Islie sits next to 4 phonetic neighbors — Isla, Islay, and Eisley are the closest matches by sound. Most share Islie's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"island"
"atmospheric mist or haze"
"lake colony settlement"
"lover, sweetheart"
"dried flower bud of the clove tree"
"Variant of Theia; Greek Titan goddess of sight and the sky, mother ..."
Similar sound: These names share phonetic patterns with Islie — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Scottish Gaelic origins, giving them the same cultural heritage as Islie.
Rhythm: Islie is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.