Emmogene sits next to 4 phonetic neighbors — Imogene, Emmeline, and Eugenia are the closest matches by sound. Most share Emmogene's Celtic Innogen via Shakespeare's Imogen-origin cluster, so the rhythm and vowel shape carry across the list.
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Similar sound: These names share phonetic patterns with Emmogene — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Celtic Innogen via Shakespeare's Imogen origins, giving them the same cultural heritage as Emmogene.
Rhythm: Emmogene is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.