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"
"Yahweh is God"
"holy, sacred one"
"noble Roman citizen"
"great king"
"to tame, to subdue"
"handsome; fair one"
"morning"
"fair, white, bright"
"free man, freeholder of land"
"great well"
"lion"
"wise protector"
"long-lived, perennial stream"
"modern American invented name"
"son of David"
"hollow (place)"
"high-spirited person"
"lotus flower"
"unity; the best; one"
"from Rome, the Eternal City"
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.