Kaikoa sits next to 4 phonetic neighbors — Kaiko, Kaikoa, and Kailoa are the closest matches by sound. Most share Kaikoa's Hawaiian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"warrior of the sea"
"one who carries the anointed"
"son of Jens (son of John)"
"nickname form of Roger"
"Caesar, leader"
"Derived from Alfred, meaning counsel of elves"
"rhythmic flow, musical beat"
"cat (via Japanese neko)"
"modern invention, possibly God-related via -el suffix"
"army, host"
"raised by Yahweh"
"supplanter + hollow (blended from Jacob + Corey)"
"from Hadria (a Roman city)"
"traveler’s peace, peaceful territory"
"clean, righteous"
"from the Brazos River, Texas"
"corner, nook"
"little king"
"noble, virtuous"
"son of Ty (Tye)"
Similar sound: These names share phonetic patterns with Kaikoa — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hawaiian origins, giving them the same cultural heritage as Kaikoa.
Rhythm: Kaikoa is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.