Harry sits next to 4 phonetic neighbors — Barry, Larry, and Gary are the closest matches by sound. Most share Harry's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"home ruler"
"light, luminous"
"home power, ruler of work"
"battle chieftain (Cerdic interpretation)"
"merciful, gentle"
"youthful, downy-bearded"
"western enclosure"
"the cool one, refreshing wind"
"behold, a son"
"prince's town"
"little warrior, young Mars"
"poet, bard"
"invented name, no established etymology"
"well-born, of noble birth"
"Paega's settlement"
"remembered by Yahweh"
"healer (via Jason/Iason)"
"good man, strong man"
"son of the right hand"
"chief desire"
Similar sound: These names share phonetic patterns with Harry — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Harry.
Rhythm: Harry is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.