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"
"possibly derived from Karl, meaning free man"
"cross, faith"
"my people"
"petunia flower"
"beloved, dear"
"life, living"
"of the stars; radiant star"
"bird"
"king's woodland clearing, king's meadow"
"beautiful, all"
"wisdom, chief, intelligence"
"from Fairday, English place name"
"noble, nobility"
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.