Shellane sits next to 5 phonetic neighbors — Sharlene, Shelley, and Jolene are the closest matches by sound. Most share Shellane's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"meadow on a ledge (from Shelley root)"
"happy, fortunate"
"possibly lilac or divine play"
"Wistar's flower"
"short form of Bradley or Bradford"
"God has shown favor"
"hero of God, God's champion"
"dark beauty"
"little hill; one who lives near the rocky knoll"
"name of God"
"water"
"laurel, victory"
Similar sound: These names share phonetic patterns with Shellane — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Shellane.
Rhythm: Shellane is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.