Shellie sits next to 4 phonetic neighbors — Shelley, Shelly, and Ellie are the closest matches by sound. Most share Shellie's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"meadow on a ledge"
"beautiful one"
"variant of Cinda/Cindy"
"of the Claudian family"
"numbness, the narcissus plant"
"battle horn"
"from Clare, the bright place"
"star"
"all true, completely true"
"red"
"mercy, clemency"
"wonderful, to be admired"
"variant of Chloris, goddess of flowers"
"to soothe, to comfort"
"flowing, moving freely"
Similar sound: These names share phonetic patterns with Shellie — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English scelf (ledge) + leah (clearing) origins, giving them the same cultural heritage as Shellie.
Rhythm: Shellie is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.