Charlie sits next to 4 phonetic neighbors — Charley, Charlotte, and Harley are the closest matches by sound. Most share Charlie's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"free man"
"victory of the people"
"anointed one"
"ruler of the estate"
"loyal as a dog"
"man from Laurentum"
"merciful, gentle"
"house builder, craftsman"
"gentle, beloved"
"Little hollow; from the little hollow place"
"noble, high"
"God has given"
"pledged, dedicated"
"my God is Yahweh"
"broad valley, broad hillside"
"from Sebastia"
"earth (in Arabic, adama)"
"rye clearing"
"virile one"
"ascended, exalted"
Similar sound: These names share phonetic patterns with Charlie — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Charlie.
Rhythm: Charlie is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.