Amin sits next to 4 phonetic neighbors — Ameen, Amir, and Amon are the closest matches by sound. Most share Amin's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"trustworthy, faithful, honest"
"baby bustard (young bird)"
"man of peace, peaceful one"
"pure, righteous (as a title of the Prophet)"
"God will increase, God will add"
"scarce, seldom"
"man of peace, peaceful one"
"good, beautiful, handsome"
"good, handsome, beautiful"
"the Arabic form of Jesus"
"befitting, suitable"
"praised, praiseworthy"
"mercy, divine blessing"
"Persia (place name)"
"in the prime of life"
"skilled, expert, proficient"
"ancestor of northern Arab tribes"
"Yahweh has helped"
Similar sound: These names share phonetic patterns with Amin — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Amin.
Rhythm: Amin is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.