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"
"goddess of love and fertility"
"protection, shielding from harm"
"radiant, shining"
"honor, compassion"
"grace, divine favor"
"pure (via Katherine root)"
"trustworthy, faithful, honest"
"bounty, generosity"
"water goddess"
"seventh month"
"peace"
"red-haired"
"sea of bitterness + rose (alternative Mary etymology)"
"pure, chaste (if Hebrew-derived)"
"bright valley"
"innocent, unblemished"
"pure, clear"
"water sprite, fairy of rivers and lakes"
"black, dark hardwood"
"woodland glade near a twisting brook"
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.