Izaya sits next to 4 phonetic neighbors — Isaiah, Ezra, and Elijah are the closest matches by sound. Most share Izaya's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is salvation"
"God has heard (via Sam = Samuel)"
"dweller by the rye field"
"divine father"
"king, lord"
"son of the devotee of Saint Faolán"
"free spirit, small but mighty"
"improvement, change for the better"
"warhorse (associated with destrier)"
"American variant of Dante"
"a legend, one destined for greatness"
"legend, heroic story"
"bold, brave counsel"
"strong grip, paw"
"of the vine"
"dark one, dark-haired"
"God will strengthen; God is my strength"
"prince, commander"
"possibly king/blessed (phonetic associations)"
"combination of strong/complete and my God is Yahweh"
"greatest"
Similar sound: These names share phonetic patterns with Izaya — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Izaya.
Rhythm: Izaya is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.