Izan sits next to 3 phonetic neighbors — Ethan, Ivan, and Isan are the closest matches by sound. Most share Izan's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious"
"bright fame, shining glory"
"born on Sunday"
"God will uplift"
"God's oath"
"gift of Yahweh"
"brave, manly"
"he will awaken"
"powerful ruler"
"asked for, prayed for"
"strong spear-fighter"
"defender of men"
"younger, the son"
"greatest one"
"determined guardian"
"noble, bright"
"peaceful, gentle as a dove"
"royalty, ruler"
"hater of injustice"
"the twin"
"vigorous, flourishing"
Similar sound: These names share phonetic patterns with Izan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew via Spanish John origins, giving them the same cultural heritage as Izan.
Rhythm: Izan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.