Celia sits next to 4 phonetic neighbors — Cecilia, Sylvia, and Delia are the closest matches by sound. Most share Celia's Latin-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"heaven, the sky"
"rocky land"
"Mary of Solitude (Maria de la Soledad)"
"cherished, dear one"
"pearl"
"free woman"
"benevolent, kind"
"wise"
"exalted, virtuous"
"rose flower"
"supplanter, one who follows"
"hardworking, industrious"
"innocent, virginal"
"gracious, kind"
"elm grove"
"the burning ones, highest angels"
"rest, comfort (when borrowing the male Noah's meaning)"
"little bird"
"paradise, the divine dwelling place"
"house of bread"
Similar sound: These names share phonetic patterns with Celia — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Celia.
Rhythm: Celia is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.