Ira sits next to 3 phonetic neighbors — Ike, Arlo, and Asa are the closest matches by sound. Most share Ira's Hebrew-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"city of God (alternate interpretation)"
"dark-skinned, Moorish"
"God knows"
"help, helper"
"God is gracious"
"noble power, powerful ruler"
"narrow water"
"home power, ruler of work"
"man, husband (older Germanic sense)"
"bold counsel, brave advisor"
"watchful, vigilant (via Casey)"
"bold, mighty"
"throne of the eye (possible etymology)"
"son of the brown-haired one"
"shining glory"
"of the angel, son of Angelo"
"manly, brave, strong"
"defender of men"
"grace, swiftness (symbolic)"
"fire (from the sun god Aodh)"
Similar sound: These names share phonetic patterns with Ira — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Ira.
Rhythm: Ira is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.