Julian sits next to 4 phonetic neighbors — Julius, Julien, and Damian are the closest matches by sound. Most share Julian's Latin-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"youthful, downy-bearded"
"Little fire; born of fire"
"hunter, pursuer"
"well-born"
"God-like"
"Christian (the religion)"
"industrious, hardworking"
"the new house"
"lion-bold; brave as a lion"
"brave, lion-hearted"
"grey home, gravelly homestead"
"one who carries the divine"
"protector of humanity"
"one who is celebrated"
"Saint James"
"from the castle, place near the ditch"
"great, magnificent"
"fortunate, prosperous"
"may God protect (alternate)"
Similar sound: These names share phonetic patterns with Julian — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin Julius family name origins, giving them the same cultural heritage as Julian.
Rhythm: Julian is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.