Ladanian sits next to 3 phonetic neighbors — Damian, Adrian, and Lavinian are the closest matches by sound. Most share Ladanian's American/Contemporary-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"modern invented name, strength implied"
"manly, strong, brave"
"God has remembered"
"loved, beloved"
"benevolence, humaneness"
"Healer, one who cures"
"gathering place, pool"
"from Laurentum (laurel city)"
"he will enlighten"
"God is gracious"
"handsome, distinguished"
"son of Hugh"
"from the southern lands"
"invented modern name; no historical meaning"
"son of Lars"
"peaceful ruler"
"fifth (born)"
"God has heard"
"remembered by the Lord"
Similar sound: These names share phonetic patterns with Ladanian — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have American/Contemporary origins, giving them the same cultural heritage as Ladanian.
Rhythm: Ladanian is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.