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"
"from Brix (place name)"
"son of God's grace"
"little rock, harmony"
"Yahweh remembers"
"Yahweh is merciful"
"narrow channel's son"
"kingly, of royal blood"
"always powerful"
"red-haired, ruddy complexion"
"good place"
"hawk of the plain"
"Yahweh is my God"
"son of Karr"
"free, liberated"
"birth, nativity"
"king"
"young dog, whelp"
"royal son; prince"
"red-haired, little red one"
"from Dax, town settlement"
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.