Keagan sits next to 4 phonetic neighbors — Keegan, Regan, and Teagan are the closest matches by sound. Most share Keagan's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of the fiery one"
"nobleman of the second rank"
"wolf, wild hunter"
"thunder ruler"
"invented modern name"
"castle, fortress, palace"
"priceless one, beyond praise"
"quiet, calm, reserved"
"shelter, protection"
"I am, self-existence, declaration of being"
"deer people (from Devon)"
"red-haired, little redhead"
"place of alder trees"
"little fire; battle-worthy"
"light, happiness (Ko in Japanese)"
"strong, healthy"
"wanderer (from Scotti people's migrations)"
"held by the heel (biblical reference)"
"pointed hill"
"high settlement or estate"
"son of the ridge dweller"
Similar sound: These names share phonetic patterns with Keagan — 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 Keagan.
Rhythm: Keagan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.