Melannie sits next to 3 phonetic neighbors — Melanie, Melany, and Mellanie are the closest matches by sound. Most share Melannie's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"black, dark"
"settlement of Kari's people"
"my beautiful one"
"God is my refuge"
"modern invented name, possibly related to vale (valley)"
"descendant of Niall"
"from the River Lea settlement"
"pure, peaceful"
"son of Cadan (transferred surname)"
"who is like God?"
"one's own meadow"
"innocence, beauty"
"the exalted one"
"heavenly light"
"Lord have mercy (prayer refrain)"
"peace"
"mighty, powerful"
"noble, of noble kind"
"little ruler with grace (from Riley + Ella roots)"
"adventure, wandering"
Similar sound: These names share phonetic patterns with Melannie — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Melannie.
Rhythm: Melannie is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.