Kaiston sits next to 3 phonetic neighbors — Kaston, Cayston, and Gaston are the closest matches by sound. Most share Kaiston's Hawaiian/Old English blend-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sea stone, seaside settlement"
"manly, strong"
"rejoice, be happy"
"peace/world (via -mir suffix)"
"trust, reliance"
"that which is yet to come"
"young, youthful"
"cart driver, cart maker"
"possessor of goodness, kingly"
"one from the sea"
"ash tree town, settlement near ash trees"
"light, bringer of light"
"Yahweh is gracious"
"modern creative compound: Ke- + Andre"
"divine wonder"
"modern American coinage"
"elder, presider"
"cutting edge of a sword or tool"
"powerful, compassionate (fictional origin)"
"bright star in Aquila"
"friend of God"
Similar sound: These names share phonetic patterns with Kaiston — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hawaiian/Old English blend origins, giving them the same cultural heritage as Kaiston.
Rhythm: Kaiston is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.