Milan sits next to 5 phonetic neighbors — Mila, Miley, and Nolan are the closest matches by sound. Most share Milan's Slavic cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"gracious, dear, beloved"
"forest, wood"
"from the green valley"
"son of the marsh dwellers"
"bay laurel (victory)"
"new"
"industrious ruler"
"child of the moon"
"eternally beloved"
"bright, shining one"
"journey, life's path, travel"
"handsome, comely"
"graceful meadow"
"victory, triumph (symbolic)"
"modern invented name (Jay + lani)"
"to strive, to rival, to excel"
"Malay peninsula"
"my God is Yahweh"
"little Robert"
"defender of men (from Alexandra)"
Similar sound: These names share phonetic patterns with Milan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Slavic origins, giving them the same cultural heritage as Milan.
Rhythm: Milan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.