Raina sits next to 4 phonetic neighbors — Reina, Rayna, and Rena are the closest matches by sound. Most share Raina's Slavic cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"queen"
"clear, evident"
"promised by God, given by God"
"pure, victorious meadow"
"seaweed (edible)"
"mortal princess loved by Zeus (mythological)"
"from the Isle of Skye"
"combination of Ember (fire) and Lynn (lake)"
"sun"
"Malay peninsula"
"delicate, languishing"
"garden of holly"
"wealthy, possessor"
"world-encircling river"
"high, exalted, rising"
"gentle horse"
"free man, free woman"
"sunlight, moon (alternate etymology)"
"heather field, heathland clearing"
"ascending, elevated"
"life"
Similar sound: These names share phonetic patterns with Raina — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Slavic origins, giving them the same cultural heritage as Raina.
Rhythm: Raina is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.