Fausta sits next to 4 phonetic neighbors — Faustina, Faustine, and Faust are the closest matches by sound. Most share Fausta's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"fortunate, lucky"
Similar sound: These names share phonetic patterns with Fausta — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Fausta.
Rhythm: Fausta is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.