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"
"one who moves smoothly"
"son of Jan"
"from the ash tree valley"
"merchant, trader"
"strong worker's son"
"mighty as a bear"
"ruler, one who rules"
"God is gracious"
"baker, bread maker"
"fair, bright one"
"fifth"
"settlement by the ash trees"
"griffin-like (legendary creature)"
"settlement by the fish dam"
"God has remembered"
"rye land, land of rye"
"dark settlement"
"peaceful, man of peace"
"settlement by water"
"God is gracious"
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.