Johann sits next to 5 phonetic neighbors — John, Johannes, and Ivan are the closest matches by sound. Most share Johann's German-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious"
"father of peace"
"from the, of the family"
"wolf"
"incomparable to God"
"diminutive of Hans (John)"
"Armenian national name of uncertain origin"
"god's field, divine meadow"
"defender of men"
"one who shines, illuminates"
"strong as an eagle"
"peaceful ruler"
"brave in counsel"
"peaceful ruler"
"one who guards treasure"
"of the Julian family (Jupiter-descended)"
"invented name; possibly son of the fearless one"
Similar sound: These names share phonetic patterns with Johann — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew Yochanan (yo + chanan) origins, giving them the same cultural heritage as Johann.
Rhythm: Johann is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.