Keiler sits next to 3 phonetic neighbors — Keeler, Tyler, and Kyler are the closest matches by sound. Most share Keiler's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"keeper of the keys"
"holly tree"
"unique, one of a kind (modern interpretation)"
"elf ruler"
"He shines"
"to sing, to shout (via Jaron/Yaron)"
"God is gracious"
"American variant of Dante"
"modern invented variant"
"supplanter + hollow (blended from Jacob + Corey)"
"he who supplants, holds by the heel"
"birth, origin, breed"
"strength, exalted one"
"the writer, the recorder"
"shield rim"
"ray of light, counsel"
"near the thicket"
"victory of the people (via Nico)"
"cinnamon-like spice"
"To set down in writing; an account preserved in writing"
Similar sound: These names share phonetic patterns with Keiler — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Keiler.
Rhythm: Keiler is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.