Kailani sits next to 3 phonetic neighbors — Lani, Kalani, and Milani are the closest matches by sound. Most share Kailani's Hawaiian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"heavenly sea, royal waters"
"woodland clearing of the wren"
"supernatural power"
"dark blue, naval fleet"
"healing herb (Salvia)"
"goddess of wisdom and warfare"
"marvel, object of wonder"
"from the town of Brielle"
"oarsman"
"chief, royalty"
"crooked nose"
"free person"
"tower; watchtower"
"daily path, life's adventure"
"sky leader, noble one"
"strong, manly"
"strong, brave, manly"
"olive tree, peace"
"hazel wood clearing (interpretive)"
"hedged valley"
Similar sound: These names share phonetic patterns with Kailani — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hawaiian origins, giving them the same cultural heritage as Kailani.
Rhythm: Kailani is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.