Benson sits next to 3 phonetic neighbors — Benton, Jensen, and Beckett are the closest matches by sound. Most share Benson's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Benedict/Benjamin"
"man, the light"
"dark man's settlement, coal-black farm"
"little saint"
"fair-haired hero; white warrior"
"feller of trees, hewer"
"deep valley; hollow valley"
"God has remembered"
"ruler of the elves"
"increase, growth"
"beauty, grace, excellence"
"valiant, brave"
"God is salvation, Yahweh saves"
"narrow road, path"
"God of the people"
"peaceful, gentle as a dove"
"hollow, empty"
Similar sound: These names share phonetic patterns with Benson — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have English origins, giving them the same cultural heritage as Benson.
Rhythm: Benson is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.