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"
"healer, physician"
"God is my God"
"wealth, fortune, prosperity"
"son of David"
"modern blend of Kai (sea) and -son suffix"
"bent nose"
"young seal, seal-born"
"oak tree meadow"
"fearless, not cowardly"
"man from South Munster"
"honoring God"
"noble, illustrious"
"winding valley"
"virile one"
"man of prayer"
"priest"
"one who mills grain"
"from the castle, place near the ditch"
"lover of churches"
"greatest"
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.