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"
"gracious lake, graceful waterfall"
"grace from the meadow"
"free woman, strong"
"brightness, fame"
"whole, beloved"
"land ruler"
"victors crown"
"great, magnificent"
"graceful, beautiful"
"morning dew, divine freshness"
"grace, favor from God"
"uncertain — possibly Native American origin"
"sea (via Kai variant)"
"from Massy, France (place name origin)"
"halo of light"
"pleasantness, sweetness"
"powerful, mighty"
"intoxicating, she who intoxicates"
"spiritual perfection"
"blessed peacemaking, holy reconciliation"
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.