Lenna sits next to 5 phonetic neighbors — Lena, Leona, and Elena are the closest matches by sound. Most share Lenna's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"light, bright"
"woman of the tribe"
"bright, shining one"
"free woman, strong woman"
"a day's travel, adventure"
"compatriots, fellow countrymen"
"lily flower"
"star of the sea"
"dark, black-haired"
"praised"
"of the meadow"
"other Aenor, foreign honor"
"elm tree"
"defender of mankind"
"strong"
"journey, day's travel"
"valley of the River Kent"
"palm tree"
"diminutive of Dorothy, beloved pet name"
"God is gracious"
"boar meadow, wild boar clearing"
Similar sound: These names share phonetic patterns with Lenna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek (via Helena) origins, giving them the same cultural heritage as Lenna.
Rhythm: Lenna is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.