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"
"little rock, harmony"
"strife, war"
"son of Lawrence"
"divine judge"
"beam of light"
"abundant, bountiful"
"brave advisor"
"divine power (from Oswald)"
"first zodiac sign, new beginnings"
"fallow land, uncultivated land"
"dweller by the woods"
"from Antwerp"
"toward the sea, seaward"
"rowan tree (mountain ash)"
"from Dax, town settlement"
"dark man's settlement, coal-black farm"
"good, blessing"
"renowned in battle"
"fair-haired one"
"wealth, fortune"
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.