Kalena sits next to 4 phonetic neighbors — Alena, Selena, and Marlena are the closest matches by sound. Most share Kalena's Hawaiian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"pure, chaste"
"from Arcy (place in Normandy)"
"resolute protector"
"grace and beauty"
"clearness, lucidity"
"evening star"
"pure, maiden"
"whole, universal (Emma) + meadow (Lee)"
"strength of God"
"of noble kind"
"advisor, counselor"
"from Zaria, princess of the city"
"modern invented name combining Az- and -lynn (lake)"
"from the orange grove"
"honey, sweet"
"care, concern, protection"
"grace, favor from God"
"rose meadow"
"jewel, ornament"
"greatly beloved"
Similar sound: These names share phonetic patterns with Kalena — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hawaiian/Greek via Karen origins, giving them the same cultural heritage as Kalena.
Rhythm: Kalena is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.