Izen sits next to 5 phonetic neighbors — Isaias, Izen, and Aizen are the closest matches by sound. Most share Izen's Basque-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"name, word"
"prince, leader"
"tracker, pursuer"
"to boil, to be alive"
"harmony, union"
"growth, abundance (via Zay- prefix)"
"star"
"bright, splendid"
"defender of mankind"
"short form of Maverick, from Samuel Maverick's unbranded cattle"
Similar sound: These names share phonetic patterns with Izen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Basque origins, giving them the same cultural heritage as Izen.
Rhythm: Izen is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.