Cecel sits next to 4 phonetic neighbors — Cecil, Cecile, and Cecelia are the closest matches by sound. Most share Cecel's Latin-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Blind; sixth; associated with Saint Cecilia, patron saint of musicians"
"twin"
"brave and strong"
"Olive tree; peace; a variant of Olivia"
"lily flower, night"
"brave, strong"
"king, chief"
"bright, shining (via Bertha root)"
"star of the sea"
"from the Emley settlement"
"forest dweller"
Similar sound: These names share phonetic patterns with Cecel — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Cecel.
Rhythm: Cecel is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.