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"
"determined guardian"
"the one who saves"
"from the Egnatius family name"
"one who struggles with God"
"man, warrior"
"born on Sunday"
"rest, comfort, peace"
"God's oath"
"God will exalt"
"king"
"gift of God"
"home ruler"
"staff of the Goths"
"like unto God"
"to increase, augur"
"one who is well-spoken of"
"illustrious, famous"
"may God protect, held by the heel"
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.