Mackenzie sits next to 3 phonetic neighbors — McKenzie, Kennedy, and Makenzie are the closest matches by sound. Most share Mackenzie's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Kenneth / son of Coinneach"
"of the eighth"
"sea fortress"
"crooked nose, bent river"
"man from the mountain"
"one who moves with speed"
"he to whom it belongs, messianic title"
"mythic bird of rebirth and renewal"
"hazel valley dweller"
"God is gracious"
"modern invented combination"
"descent, gentle"
"from the raven (place name)"
"wild garlic island"
"champion, cloud"
"God is gracious (related to Yohanan)"
"of the Sabine people"
"clay town, clay enclosure"
"defender of the people"
"uncle"
Similar sound: These names share phonetic patterns with Mackenzie — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Scottish Gaelic origins, giving them the same cultural heritage as Mackenzie.
Rhythm: Mackenzie is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.