Heleni sits next to 4 phonetic neighbors — Helena, Eleni, and Helene are the closest matches by sound. Most share Heleni's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"torch, shining light"
"God is gracious (from Jean/Jane lineage)"
"attractive, pleasant, beautiful"
"very swift"
"gift of Yahweh"
"iron woman, bold woman"
"unique, one of a kind"
"chromium element, shiny metal"
"mankind, human being"
"contemplation, observation"
"divine breath, life force"
"clever/talented blessing"
"creative American name coinage"
"Combination of Nova (new, exploding star) + the suffix -leen"
"flower"
"bright, radiant sky"
"star, stars"
"wading, crossing water"
Similar sound: These names share phonetic patterns with Heleni — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Heleni.
Rhythm: Heleni is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.