Antonina sits next to 5 phonetic neighbors — Antonia, Antonella, and Antonella are the closest matches by sound. Most share Antonina's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
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"priceless, praiseworthy"
"princess (via Sara)"
"illumination, radiance"
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"sky-colored, blue"
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Similar sound: These names share phonetic patterns with Antonina — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Etruscan/Latin origins, giving them the same cultural heritage as Antonina.
Rhythm: Antonina is a 5-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.