Keegan sits next to 5 phonetic neighbors — Reagan, Teagan, and Logan are the closest matches by sound. Most share Keegan's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Egan, little fire"
"master of inspired frenzy"
"Viking homeland (Scandinavia)"
"son of Karr"
"son of"
"western clearing"
"of Mount Carmel"
"dove (short for Callum from Scottish Gaelic)"
"noble and ready"
"great town"
"gift, from the sea"
"friend, companion"
"valley settlement"
"morning"
"passionate, fiery one"
"rest, repose"
"son of Otto"
"clearing among oaks"
"son of the king"
"God has helped"
"to heal (from iasthai)"
Similar sound: These names share phonetic patterns with Keegan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic (Mac Aodhagáin) origins, giving them the same cultural heritage as Keegan.
Rhythm: Keegan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.