Kaston sits next to 5 phonetic neighbors — Caston, Gaston, and Boston are the closest matches by sound. Most share Kaston's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from the castle town"
"modern coinage combining Matt + -ix suffix"
"little churchman, associated with the church"
"my messenger, my angel"
"creative American construction"
"praised, lauded"
"strong lord, fierce chief"
"to follow a path, to mark"
"God is salvation, Yahweh saves"
"people's power"
"entire, all-encompassing"
"invented creative variant"
"healer"
"the mountain"
"fortune; luck (in Spanish/Italian)"
"dear one"
"stone sword, sword stone"
"always ruler"
"of God, divine man"
"belief, trust, credibility"
Similar sound: These names share phonetic patterns with Kaston — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Kaston.
Rhythm: Kaston is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.