Niles sits next to 5 phonetic neighbors — Miles, Giles, and Lyle are the closest matches by sound. Most share Niles's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"champion, winner"
"writing tablet, fresh start"
"gate keeper"
"shining, bright, luminous"
"baker"
"steward, estate manager"
"the color blue"
"great (via Chinese Quan)"
"variant of Mason (stone worker)"
"ease, wealth"
"little saint, holy one"
"nautical mile, measure of sea distance"
"farmer, peasant landholder"
"calm, serene"
"barberry tree hill"
"from Arcy, Norman town"
"variant of Caden (battle)"
"cause of death, ruin, poison"
"of royal lineage, kingly"
"place by the wide ford"
Similar sound: These names share phonetic patterns with Niles — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic Niall origins, giving them the same cultural heritage as Niles.
Rhythm: Niles is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.