Mariano sits next to 4 phonetic neighbors — Mario, Marino, and Marciano are the closest matches by sound. Most share Mariano's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"of the gens Maria, manly"
"famous throughout the land"
"bright, splendid"
"of the angel, son of Angelo"
"my God is help"
"God is gracious"
"blessed"
"cross"
"famous spear"
"sprout, bud"
"reborn, born again"
"born at dawn, bringer of light"
"warrior"
"strength of God"
"free man, Frenchman"
"little warrior, young Mars"
Similar sound: These names share phonetic patterns with Mariano — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Mariano.
Rhythm: Mariano is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.