Sturgill sits next to 4 phonetic neighbors — Virgil, Gideon, and Sterling are the closest matches by sound. Most share Sturgill's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sturgeon fisher, from the sturgeon settlement"
"uncertain — possibly invented or from an undocumented oral tradition"
"he who holds firm the good"
"son of Andrew"
"counseled by supernatural beings"
"valley, dell, low-lying area"
"advice, counsel"
"little blind one, the blind one"
"flat-bladed digging tool"
"hand of God"
"modern American name creation"
"little seal"
"new house (via Xavier)"
"pure, peaceful"
"from Leamhanaich (elm grove place)"
"counsel + guardian"
"swift as a leopard"
"heart"
"all-wise"
"goodness of God"
"fire of Yahweh"
Similar sound: These names share phonetic patterns with Sturgill — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have English topographic surname origins, giving them the same cultural heritage as Sturgill.
Rhythm: Sturgill is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.