Charley sits next to 5 phonetic neighbors — Charlie, Harley, and Barley are the closest matches by sound. Most share Charley's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"free man, strong man"
"marshy land by a lake"
"thunder ruler"
"world ruler"
"invented name, possibly faithful or gentle"
"from the meadow"
"modern invented American name"
"white, blessed"
"God is gracious (via Eoin/John)"
"calm, tranquility"
"lord, father, sovereign"
"court musician, entertainer"
"a natural watercourse"
"modern invented name, unique spirit"
"referring to the Cree Indigenous people of North America"
"lover of hounds"
"dreamy obscurity"
"settlement near the sword hill"
"good race, fine stock"
"industrious, striving"
Similar sound: These names share phonetic patterns with Charley — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old High German (Karl) origins, giving them the same cultural heritage as Charley.
Rhythm: Charley is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.