Banks sits next to 4 phonetic neighbors — Blanks, Hanks, and Franks are the closest matches by sound. Most share Banks's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"one who lives near a riverbank"
"Roman pilgrim"
"broad valley, broad hillside"
"counsel's guardian"
"God is gracious (via John/Zane)"
"angel; messenger of God"
"man of peace"
"modern American coinage, son of Case"
"land where rye grows"
"fallow land, uncultivated land"
"firm foundation"
"narrow strait"
"from the green valley"
"home ruler"
"cloth fuller, fabric tucker"
"appointed by God"
"from the castle, place near the ditch"
"colt herder, horse keeper"
"healer"
"noble and ready"
"dweller near the woods"
Similar sound: These names share phonetic patterns with Banks — 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 Banks.
Rhythm: Banks is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.