Wolfgang sits next to 4 phonetic neighbors — Wolfram, Wolfhart, and Bertgang are the closest matches by sound. Most share Wolfgang's German-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"wolf path, the way of the wolf"
"alder tree"
"free man, strong man"
"the greatest"
"victorious protection (Sigmund root)"
"ruler of the people"
"peaceful ruler"
"ruler of the home"
"strong as an eagle"
"strong as a lion"
"defender of the army"
"rigid airship (named for Count Ferdinand von Zeppelin)"
"diminutive of Hans (John)"
"famous in battle"
"father of peace"
"victors garland"
"power of peace"
Similar sound: These names share phonetic patterns with Wolfgang — 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 Wolfgang.
Rhythm: Wolfgang is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.