Gunther sits next to 3 phonetic neighbors — Gunnar, Hunter, and Gunter are the closest matches by sound. Most share Gunther's German-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"battle warrior, army in battle"
"will-helmet (determined guardian)"
"chalk ridge, chalk farm"
"land surrounded by water"
"God delivers, divine rescue"
"son of the sea, born from ocean waves"
"from the ash tree dell"
"griffin-like (legendary creature)"
"bright-headed"
"son of Jack"
"independent wanderer, one who plays by their own rules"
"conqueror"
"hay meadow"
"Dutch/Scandinavian spelling of Isaac from Yitzchak"
"Tyrian — of imperial purple"
"craftsman"
"supplanter, one who grabs the heel"
"strong worker's son"
"God is gracious"
"blackbird"
Similar sound: These names share phonetic patterns with Gunther — 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 Gunther.
Rhythm: Gunther is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.