Kallai sits next to 4 phonetic neighbors — Caleb, Kali, and Eli are the closest matches by sound. Most share Kallai's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"swift, light"
"all wise, elf wise"
"from Jerez (the wine region)"
"night, dark beauty (beautiful night)"
"son of Maud"
"laurel-crowned, victorious"
"of the Khasi people, born of the Khasi"
"weary, shaped by use"
"divine, heavenly"
"modern variant; to heal (via Jason/Jace connection)"
"defender of men"
Similar sound: These names share phonetic patterns with Kallai — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Kallai.
Rhythm: Kallai is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.