Torrance sits next to 4 phonetic neighbors — Florence, Terrence, and Laurence are the closest matches by sound. Most share Torrance's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"little hill; one who lives near the rocky knoll"
"dark beauty"
"Wistar's flower"
"meadow on a ledge (from Shelley root)"
"water"
"goddess of fortune and luck"
"God is gracious"
Similar sound: These names share phonetic patterns with Torrance — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Scottish Gaelic origins, giving them the same cultural heritage as Torrance.
Rhythm: Torrance is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.