Polina sits next to 5 phonetic neighbors — Paulina, Apollonia, and Pelina are the closest matches by sound. Most share Polina's Russian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"small, humble"
"defender of mankind"
"fairy queen, princess"
"from the Sabine king Titus Tatius"
"glory of the father"
"strong, healthy, vigorous"
"swift as a gale"
"successful, prosperous"
"crowned one"
"stranger, foreigner (from xenos)"
"peace, wholeness, completeness"
"bright star"
"sea, ocean"
"Asia, the eastern continent"
"victory"
"dark, dark-haired"
Similar sound: These names share phonetic patterns with Polina — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin via Slavic origins, giving them the same cultural heritage as Polina.
Rhythm: Polina is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.