Benson sits next to 4 phonetic neighbors — Bentley, Bryson, and Jensen 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/Ben"
"life, living"
"possibly famous warrior"
"life, living"
"my people"
"vintage, growth (as in wine)"
"Wild cat with short tail and tufted ears"
"tobacco plant relative"
"beloved, dear"
"noble, nobility"
"light, torch"
"wisdom, chief, intelligence"
"possibly derived from Karl, meaning free man"
Similar sound: These names share phonetic patterns with Benson — 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 Benson.
Rhythm: Benson is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.