Tavian sits next to 4 phonetic neighbors — Tavon, Gavin, and Favian are the closest matches by sound. Most share Tavian's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"eighth, born eighth"
"rye clearing, rye meadow"
"counsel + guardian"
"fingernail, claw"
"uncertain — possibly related to the island of Ikaria"
"small songbird, finch"
"master, mister (honorific)"
"Yahweh is gracious"
"gift of God, godlike"
"of the Jordan River"
"faithful one"
"the sky, abode of God"
"old power, noble ruler"
"ancestor's descendant (alternative etymology)"
"warrior, fighter"
"modern American invented name"
"vigor, earnestness, seriousness in battle"
"ford belonging to the king"
"from the Bexton place"
"joined, attached"
"God is my strength (from Azael root)"
Similar sound: These names share phonetic patterns with Tavian — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Tavian.
Rhythm: Tavian is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.