Kaya sits next to 4 phonetic neighbors — Kai, Kade, and Kayo are the closest matches by sound. Most share Kaya's Japanese cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"elder brother, wise child"
"my king, kingly one"
"champion, cloud"
"the green one, evergreen"
"beautiful (phonetic usage)"
"belief, conviction"
"my God is Yahweh"
"valley"
"noble, honorable, eminent"
"powerful warrior people"
"bright, luminous"
"wise, judicious"
"true, faithful, trustworthy"
"divinely supported"
"greatness, glory, majesty"
"generous sharer"
"bringer of gifts"
"entertaining companion, jovial storyteller"
"warm"
"angel, divine messenger"
Similar sound: These names share phonetic patterns with Kaya — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hopi origins, giving them the same cultural heritage as Kaya.
Rhythm: Kaya is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.