Madix sits next to 5 phonetic neighbors — Maddox, Phoenix, and Calix are the closest matches by sound. Most share Madix's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of good fortune"
"counsel + guardian"
"creative American name combining Ty + Reese"
"lord, respected elder (if from Sire)"
"descendant of Rian"
"shadow, area of darkness"
"son of Ben, son of the right hand"
"place of the winding shore"
"one who lives near a pool or stream"
"man from South Munster (southern Ireland)"
"farmer, cultivator, tenant farmer"
"one who does not speak, baby"
"old friend, wise friend"
"from the field, outdoors warrior"
"hitting the mark, fortunate"
"settlement by the bridge"
"fearless one"
"king of the valley"
"son of the servant of Saint John"
"honey chief (from mel + iodas)"
"son of Mads (Matthew)"
Similar sound: These names share phonetic patterns with Madix — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh Madawc/Madoc origins, giving them the same cultural heritage as Madix.
Rhythm: Madix is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.