Deron sits next to 4 phonetic neighbors — Darren, Devon, and Darian are the closest matches by sound. Most share Deron's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"great, mighty"
"modern coinage combining Jay (God) and -ren suffix"
"radiant, bright"
"friendly people"
"just, righteous, fair"
"one who finds the way, wayfinder"
"the hay town"
"rich, powerful"
"arhat, enlightened Buddhist monk"
"counsel power, wise advisor"
"griffin-like (legendary creature)"
"dweller by the rye field"
"fresh, new"
"chief, lord"
"six"
"God is gracious"
"son of Roger, famous spear"
"who is like God?"
"victory of the people"
"of Mars, warrior spirit (Mars element)"
Similar sound: These names share phonetic patterns with Deron — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh/Celtic origins, giving them the same cultural heritage as Deron.
Rhythm: Deron is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.