Ngai sits next to 3 phonetic neighbors — Nye, Kai, and Guy are the closest matches by sound. Most share Ngai's Cantonese Chinese-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sky, firmament"
"rocky hill, outcropping"
"very famous, great renown"
"God will raise up, exalted by God"
"possibly derived from Noah (rest, comfort)"
"from Britain, Briton"
"craftsman, smith"
"river mouth, estuary"
"brilliant whiteness, purity"
"From Old French mote meaning a mound, hillock, or moat; a topograph..."
"western meadow"
"rapid strike"
"fair; white; bright"
"Prosperous spear; rich with fortune. A dialectal and Anglicized var..."
Similar sound: These names share phonetic patterns with Ngai — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Cantonese Chinese origins, giving them the same cultural heritage as Ngai.
Rhythm: Ngai is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.