Zavian sits next to 5 phonetic neighbors — Xavier, Xavian, and Zavier are the closest matches by sound. Most share Zavian's Basque (via Xavier)-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"new house, bright"
"bright, radiant"
"dear, beloved (associated folk etymology)"
"from the moon"
"one who works with books"
"to light up, illuminate"
"chicken (separate Dutch usage)"
"son of Javan, modern invention"
"modern invented variant of Zayd"
"modern blend: bright house, highest point"
"army guard, protecting warrior"
"dragon, serpent"
"place of alder trees"
"God has given"
"of God, God's own"
"of the Terentius clan"
"fair, white, bright"
"crew, team"
"old town, settlement"
"dweller in the valley"
"cross"
Similar sound: These names share phonetic patterns with Zavian — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Basque (via Xavier) origins, giving them the same cultural heritage as Zavian.
Rhythm: Zavian is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.