Deion sits next to 4 phonetic neighbors — Deon, Leon, and Neon are the closest matches by sound. Most share Deion's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"follower of Dionysos, of Zeus"
"invented modern name"
"of the wood, forest-born"
"son of Jack"
"modern invented name"
"high settlement or estate"
"throne"
"new house, bright"
"from the coal settlement"
"hollow land (alternative)"
"land of mountains"
"supreme ruler"
"high place, hill top"
"guardian of riches"
"son of Rand, son of the shield-wolf"
"spear, acquired"
"son of Otto, helpful"
"bold, riot"
"dove"
"famous in battle"
Similar sound: These names share phonetic patterns with Deion — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Deion.
Rhythm: Deion is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.