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"
"noble, strong"
"fortified hill"
"colt herder, horse keeper"
"cask maker, craftsman"
"divine reward"
"oak tree meadow"
"treasurer, keeper of treasure"
"the Lord saves"
"dear one of God"
"winding valley"
"descendant of the little king"
"protector of men"
"son of David"
"favored by the gods"
"victory of the people"
"one who bails, deliverer"
"son of the hood/hooded man"
"handsome at birth"
"bear strength, brave as a bear"
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.