Avian sits next to 5 phonetic neighbors — Avian, Vivian, and Damian are the closest matches by sound. Most share Avian's Latin-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"of the birds, bird-like"
"crooked nose (old Gaelic nickname)"
"bold, wild, fierce"
"hero, champion, semi-divine mortal"
"gift of God"
"counsel, decision"
"honoring God"
"star"
"son of Carr, from the marsh"
"concluding musical passage"
"Dack's settlement"
"champion (Irish-inspired)"
"reed clearing"
"variant of Jason (healer) or Jacob (supplanter)"
"Greece/Ionian (Javan/biblical element)"
"English place name surname"
"invented American name, possibly river (from Zaire)"
"protector of mankind"
"talented, gifted"
"settlement on the ridge, hilltop estate"
Similar sound: These names share phonetic patterns with Avian — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Avian.
Rhythm: Avian is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.