Orson sits next to 3 phonetic neighbors — Carson, Arson, and Horton are the closest matches by sound. Most share Orson's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"little bear, bear cub"
"surname derived from topographic ridge"
"descendant of Riagán"
"chain link, connection"
"alder tree"
"estate dweller"
"hawk-like"
"creative elaboration of Finn"
"from Airelle (a place in Normandy, France)"
"prince (from Arabic amir root)"
"crew, team"
"deep gorge, ravine"
"modern invention with spiritual connotation"
"son of the fiery one"
"of the wood, forest-born"
"handsome, radiant one"
"land of mountains"
"invented name; possibly son of the fearless one"
"from the Germanic people"
"creative sound combination (no definitive meaning)"
"reminiscent of paladin (heroic knight)"
Similar sound: These names share phonetic patterns with Orson — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French origins, giving them the same cultural heritage as Orson.
Rhythm: Orson is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.