Oswaldo sits next to 4 phonetic neighbors — Osvaldo, Oswald, and Ronaldo are the closest matches by sound. Most share Oswaldo's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"divine power"
"lion"
"healer"
"brave as a lion"
"servant of God"
"of good race, noble"
"crossroads, intersection"
"blue"
"variant of Giovanni/John"
"narrow strait"
"God has remembered"
"Bel (the lord) protect the king"
"of the mountains, mountain dweller"
"from the forest, woodland"
"gift of Yahweh"
"noble strength"
"my God is help"
"imperial title, emperor"
Similar sound: These names share phonetic patterns with Oswaldo — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Oswaldo.
Rhythm: Oswaldo is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.