Without knowing the meaning of "Hershell" (if it has one), the best approach would be to find a Greek name that sounds phonetically similar, perhaps focusing on a similar syllable structure. This is subjective and there's no "right" answer. Examples (though none are exact matches):
* Έρσελ (Ersel): This is a close phonetic transliteration but lacks a clear meaning in Greek.
* Ερσις (Ersis): Slightly altered, but again without inherent Greek meaning.
Ultimately, selecting a Greek equivalent for "Hershell" requires some creative liberty and a decision based on which aspects of the name (sound or potential meaning) you wish to prioritize.