Kai sits next to 3 phonetic neighbors — Kay, Ray, and Jay are the closest matches by sound. Most share Kai's Hawaiian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sea"
"stranger, foreigner"
"descended from James, meaning supplanter"
"keeper of the park, park ranger"
"anointed one"
"God's spear"
"God is my strength"
"who resembles God"
"cart driver, transporter of goods"
"who is like God?"
"God is gracious"
"From Hebrew 'Kalev'; possibly related to 'kelev' meaning dog, symbo..."
"to heal, healer"
"advice, counsel"
"strong as a boar"
"son of the hood/hooded man"
"from Grantham"
"Brock's town"
"raven hill"
"fortunate, prosperous"
Similar sound: These names share phonetic patterns with Kai — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hawaiian origins, giving them the same cultural heritage as Kai.
Rhythm: Kai is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.