Khaina sits next to 4 phonetic neighbors — Kiana, Kayla, and Zaina are the closest matches by sound. Most share Khaina's African-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"gracious, beautiful"
"little honor, dear one"
"melodic, flowing (from sound aesthetics)"
"she of the lake"
"my father is Yahweh"
"female heir, inheritor"
"who is like God"
"beautiful, graceful"
"noblewoman, mistress of the household"
"helper, aid"
"precious gem, jewel"
"the other Aenor (Aliénor)"
"helped by God, God has helped"
"of the moon, moon-like"
"star"
"wise protector"
"festival of roses"
"moon goddess"
"to look against (literally)"
"white phantom"
"heavenly sea"
Similar sound: These names share phonetic patterns with Khaina — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic/Swahili origins, giving them the same cultural heritage as Khaina.
Rhythm: Khaina is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.