Hersh sits next to 4 phonetic neighbors — Hirsch, Hershel, and Hersch are the closest matches by sound. Most share Hersh's Yiddish/Germanic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"deer, stag"
"dark, black-haired"
"garden of God, orchard"
"who is like God"
"valley dweller"
"possibly from Basque or Persian place names"
"gift of God (from Armenian/Hebrew Zaven)"
"lordly, master (via Cyril)"
"enclosed pasture by a river"
"God is gracious"
"fortune, chance"
"healer"
"vigilant in war (via Casey)"
"savior, deliverer"
"deer, little deer"
"wealthy guardian"
"son of Cadan, fighter"
"short form of Isaac"
"healer"
"modern American creation, variant of Jayden"
"twin"
Similar sound: These names share phonetic patterns with Hersh — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Yiddish/Germanic origins, giving them the same cultural heritage as Hersh.
Rhythm: Hersh is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.