Maddox sits next to 3 phonetic neighbors — Mattox, Paddock, and Braddock are the closest matches by sound. Most share Maddox's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Madoc"
"home ruler"
"ruler of the people"
"downy-bearded, youth"
"father of peace"
"my God is the Lord"
"place of peace, tranquil"
"victory of the people (short for Nicholas)"
"raven hill"
"group, team, company of people"
"famous warrior, renowned in battle"
"son of Jack"
"From Hebrew 'Kalev'; possibly related to 'kelev' meaning dog, symbo..."
"supplanter"
"who resembles God"
"God has heard"
"divine gift"
"manly, brave"
"blazing iron"
"savior"
Similar sound: These names share phonetic patterns with Maddox — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh origins, giving them the same cultural heritage as Maddox.
Rhythm: Maddox is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.