Celesta sits next to 4 phonetic neighbors — Celeste, Celestia, and Celesta are the closest matches by sound. Most share Celesta's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"heavenly, of the sky"
"glory, fame"
"pearl"
"happiness, joy"
"little one"
"one who brews ale or beer"
"of noble lineage, shining"
"little flower"
"moonlit grace"
"joy, happiness"
Similar sound: These names share phonetic patterns with Celesta — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Celesta.
Rhythm: Celesta is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.