Rosalia sits next to 5 phonetic neighbors — Rosalie, Rosalind, and Natalia are the closest matches by sound. Most share Rosalia's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"rose, garland of roses"
"gentle, agreeable"
"praised, exalted"
"gracious, kind"
"labor, toil"
"sea of bitterness"
"God has answered"
"festivity, abundance"
"sunny place, sunshine"
"angelic, messenger of God"
"noble, of noble birth"
"heavenly"
"white or bright settlement"
"God is gracious"
"free person"
"beautiful sound, elegant gem"
"from Siena"
"brightness, radiance"
"devoted to Paul, little one"
"Mary of Solitude (Maria de la Soledad)"
Similar sound: These names share phonetic patterns with Rosalia — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin (rosalia) origins, giving them the same cultural heritage as Rosalia.
Rhythm: Rosalia is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.