Teagen sits next to 4 phonetic neighbors — Teagan, Tegan, and Reagan are the closest matches by sound. Most share Teagen's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"fair, beautiful"
"modern compound: Mc (son of) + Aiden (little fire)"
"great one"
"settlement on a hill"
"courageous, valiant"
"thankful, God has heard"
"bramble, prickly plant"
"large town, community"
"kingly power"
"enthusiasm, ardor, passion"
"modern creative name with nature roots"
"fair-haired hero"
"Son of Otto"
"sturgeon fisher, from the sturgeon settlement"
"wren bird + meadow clearing"
"legacy, something handed down"
"action, deed, fate"
"lamb"
"dwelling by the stream"
"good, excellent + blue"
"related to Cash, from Old French casse meaning chest or box"
Similar sound: These names share phonetic patterns with Teagen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh origins, giving them the same cultural heritage as Teagen.
Rhythm: Teagen is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.