Teagan sits next to 4 phonetic neighbors — Reagan, Keegan, and Logan are the closest matches by sound. Most share Teagan's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"little poet, little philosopher"
"from the mouth of the Roe river"
"the Nubian, the southerner"
"God is gracious (if related to John)"
"Harry's son, son of the ruler"
"from Airelle (a place in Normandy, France)"
"God has remembered"
"impulsive, little king"
"God has given"
"king, sovereign"
"from the western direction"
"son of Anne, son of Agnes"
"bright, radiant"
"modern invented name"
"invented modern name"
"flowing down (from Jordan)"
"deep gorge, ravine"
"modern invented name"
"bent grass clearing, meadow"
"hawk-like"
"rim of a shield"
Similar sound: These names share phonetic patterns with Teagan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Teagan.
Rhythm: Teagan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.