Harmonee sits next to 3 phonetic neighbors — Harmony, Hermione, and Melody are the closest matches by sound. Most share Harmonee's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"harmony, concord, agreement"
"supplanter"
"beloved"
"God is gracious"
"modern invented name"
"evening, twilight"
"noble strength (alternate etymology)"
"noble woman"
"beloved, dear"
"noble, gracious"
"shining, bright"
"surname place name"
"brave as a wild boar"
"fond of horses (philos + hippos)"
"bright fame"
"from Scotland"
"gift"
"ruler of elves (Avery root)"
"courageous, valiant"
"southern town, southern settlement"
Similar sound: These names share phonetic patterns with Harmonee — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Harmonee.
Rhythm: Harmonee is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.