Kenzai sits next to 3 phonetic neighbors — Kenzo, Kenzi, and Kai are the closest matches by sound. Most share Kenzai's Japanese cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"strong, healthy"
"harmony, one"
"Welsh form of John"
"dark one, little dark-haired one"
"son of Faelan (the little wolf)"
"my God is the Lord"
"bold, brave"
"calm, serene"
"clerk, scholar, scribe"
"mother"
"pure, without deception"
"dark one, descendant of the dark one"
"wood, lumber, forest"
"powerful, keen warrior"
"fine-grained grey metamorphic rock"
"dark warrior, little dark chieftain"
"warlike, fighter (from Thracius)"
"from Old English gerefa (administrator)"
"God is gracious"
"creative musical name"
"one who bakes"
Similar sound: These names share phonetic patterns with Kenzai — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Japanese (ken 健) origins, giving them the same cultural heritage as Kenzai.
Rhythm: Kenzai is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.