Oswald sits next to 4 phonetic neighbors — Gerald, Harold, and Osbert are the closest matches by sound. Most share Oswald's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"divine power, God's rule"
"counselor, advisor"
"great river (geographic)"
"The sky, heavens"
"son of the home ruler"
"elf counsel, wise counselor"
"lord, master"
"victory; honor"
"settlement by a bird-trap"
"friend of the army, warrior's friend"
"modern invented name"
"of the forest, wooded"
"light"
"peaceful ruler"
"ancient, enduring"
"modern invented name with sun/strength connotations"
"strong; speckled one"
"horn, strong-willed"
"Majestic, inspiring reverence"
"the frenzied one, the inspired"
"the very greatest"
Similar sound: These names share phonetic patterns with Oswald — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English os weald origins, giving them the same cultural heritage as Oswald.
Rhythm: Oswald is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.