Zachary sits next to 4 phonetic neighbors — Xavier, Zander, and Cody are the closest matches by sound. Most share Zachary's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God has remembered"
"he who carries the heavens"
"God's spear"
"lion"
"flowing body of water, stream"
"whole-hearted, faithful"
"Mack's spring, great stream"
"wealthy guardian"
"park, game preserve"
"unity; the best; one"
"permanent, long-lived"
"soldier"
"spotted stone"
"gracious, mild"
"the Lord heals"
"protector of mankind"
"group, team, company of people"
"king's town"
"hunter"
"cheerful settlement"
Similar sound: These names share phonetic patterns with Zachary — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Zachary.
Rhythm: Zachary is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.