Lavion sits next to 4 phonetic neighbors — Levon, Lavon, and Davion are the closest matches by sound. Most share Lavion's American-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Possibly lion (from Levon/Leon) or a modern creative invention"
"rounded hill, trunk-shaped land"
"fate, destiny, one's allotted share"
"from the clay valley"
"barley grain, of the barley field"
"fortunate, successful"
"one who listens intently, listener"
Similar sound: These names share phonetic patterns with Lavion — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have American origins, giving them the same cultural heritage as Lavion.
Rhythm: Lavion is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.