Eulalia sits next to 4 phonetic neighbors — Eulalie, Amalia, and Aurelia are the closest matches by sound. Most share Eulalia's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sweetly speaking, well-spoken"
"rosary, garland of roses"
"God is gracious"
"light, illumination"
"grace, favor"
"God is gracious"
"primordial goddess of night"
"gracious gift of God"
"of the Sabine people"
"daughter of the sun"
"ancient, enduring"
"weary, delicate"
"grace, God has been gracious"
"fresh, flowing stream (alternative etymology)"
"the flowering vine"
"from Lourdes, place of miracles"
"horn (from Cornelia)"
"little Antonia, beloved one"
"angels, of the angels, divine messengers"
"grace and beauty"
Similar sound: These names share phonetic patterns with Eulalia — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Eulalia.
Rhythm: Eulalia is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.