Volina sits next to 4 phonetic neighbors — Polina, Valina, and Galina are the closest matches by sound. Most share Volina's Slavic cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Possibly from Slavic volna meaning wave, or related to free will"
"hair of a comet"
"maiden, girl"
"wet, rain"
"Beautiful"
"beam of light"
"from Obdul (place name or personal name)"
"mistress, lady of the house"
"modern invented name, possibly related to traveler"
"Noble; of noble kind. A variant of Adele and Adell, rooted in the O..."
"queen"
"bear battle"
"Great nation; of the Maratha people"
"immaculate conception, divine beginning"
"bold in counsel"
Similar sound: These names share phonetic patterns with Volina — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Slavic origins, giving them the same cultural heritage as Volina.
Rhythm: Volina is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.