Teller sits next to 4 phonetic neighbors — Tyler, Keller, and Feller are the closest matches by sound. Most share Teller's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"one who tells, narrator, counter of money"
"to guard, to keep watch"
"of royal status"
"protector of mankind"
"little poet; philosopher"
"powerful giant, cosmic force"
"Yahweh has saved"
"son of the dark one (via Maurus)"
"strength, honor"
"mortal being"
"handsome, born of fire"
"strength of God"
"Ireland, land of the west"
"strong fighter (from bar + hard)"
"modern nature name variant"
"power of the sea"
"son of Faelan (the little wolf)"
"son of Mart (Martin)"
"at the ford (river crossing)"
"harmony, one"
"keen-eyed hunter"
Similar sound: These names share phonetic patterns with Teller — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Middle English origins, giving them the same cultural heritage as Teller.
Rhythm: Teller is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.