Helena sits next to 4 phonetic neighbors — Elena, Eleanor, and Selena are the closest matches by sound. Most share Helena's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"shining light, bright one"
"grassy field, open pasture"
"home strength, brave power"
"bird + grace"
"goddess of the hunt and moon"
"noble, exalted"
"youthful, downy"
"noble, nobility"
"motion, wandering"
"the Holy Trinity; threefold"
"God is my judge"
"messenger of God; angel"
"afloat, calm as still waters"
"short form of Cleopatra: glory of the father"
"from Magdala, woman of the tower"
"entire, all-encompassing"
"foreign riches, bright one"
"from Saint-Denis"
"lion, lion of God"
"high place, elevated ground"
Similar sound: These names share phonetic patterns with Helena — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Helena.
Rhythm: Helena is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.