Reena sits next to 3 phonetic neighbors — Rina, Rena, and Leena are the closest matches by sound. Most share Reena's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"joyful song, joy"
"cloak of Saint Martin (original meaning)"
"pure (via Katherine root)"
"pure"
"divine, pure"
"fair, bright (fionn) + warrior/hero (lagh)"
"the moon (by association with Artemis)"
"divine gift"
"water sprite, fairy of rivers and lakes"
"noble, nobility"
"port, landing place"
"graceful, favored"
"healthy, whole"
"dark beauty, dark-complexioned one"
"of or pertaining to birth"
"clearing in the bent grass meadow"
"ford at the oak tree"
"ruler of elves"
"God's gift; long-lived"
Similar sound: These names share phonetic patterns with Reena — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Reena.
Rhythm: Reena is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.