Keo sits next to 3 phonetic neighbors — Kai, Koa, and Leo are the closest matches by sound. Most share Keo's Hawaiian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"the wind, breath of life"
"good, virtuous"
"son of Jack, God is gracious"
"noble heir, royal successor"
"cloud"
"divine strength"
"bright valley"
"black, dark-complexioned"
"quality, excellence of character"
"beloved"
"moonlit, luminous"
"dark warrior"
"God has bestowed, gift of God"
"son of Stephen, one who wears the crown"
"son of Cole (son of Nicholas)"
"dawn, new beginning"
"son of Braxton"
"symbol of wisdom and knowledge"
"victory"
"court officer, legal summoner"
"beloved of God (if Dai- is from Welsh David)"
Similar sound: These names share phonetic patterns with Keo — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hawaiian origins, giving them the same cultural heritage as Keo.
Rhythm: Keo is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.