Arnoldo sits next to 5 phonetic neighbors — Arnold, Arnaldo, and Rinaldo are the closest matches by sound. Most share Arnoldo's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"eagle ruler, eagle power"
"God is my father"
"from Luca, of the light"
"belonging to the Lord"
"anointed one"
"salvation, God saves"
"rival, eager to excel, striving"
"strong, enduring"
"peace through daring"
"grove, wooded area"
"river of the wolf, valley river"
"from Milan, middle of the plain"
"ruler of the home"
"calm, serene, protective"
"great, venerable"
"youthful, downy-bearded"
"Maria reversed (folk etymology)"
"strength, power"
"bright ruler"
"triumphant one"
Similar sound: These names share phonetic patterns with Arnoldo — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old High German origins, giving them the same cultural heritage as Arnoldo.
Rhythm: Arnoldo is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.