Orion sits next to 3 phonetic neighbors — Ryan, Orrin, and Oriole are the closest matches by sound. Most share Orion's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"rising in the sky, boundary"
"Roman pilgrim"
"descendant of Aodh (fire)"
"from Dax, town settlement"
"dark-complexioned"
"messenger, herald"
"defender of the people"
"superlative of magnus (great)"
"thunder god"
"dispenser of provisions, household steward"
"one who is celebrated"
"rich protector"
"modern blend of Kai (sea) and -son suffix"
"hunter, one who hunts"
"comforted by God"
"strength, manly beauty"
"from the south village"
"Brandon's woodland clearing"
"from the city of Milan"
"Frankish person"
"of the Fabian family"
Similar sound: These names share phonetic patterns with Orion — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Orion.
Rhythm: Orion is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.