Nia sits next to 4 phonetic neighbors — Mia, Tia, and Lia are the closest matches by sound. Most share Nia's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"brightness, lustrous"
"green gem, the green one"
"defender of men (from Alexandra)"
"sunlight, warmth"
"combination of Z + Lee (clearing, meadow)"
"joyful, of Jupiter"
"little Laura"
"lord, master"
"grace, favor"
"help, helper"
"gray battle maiden"
"dawn, morning star"
"forgiveness"
"God is my oath"
"bright fame, shining fame"
"hope"
"pearl"
"woman from Mount Cynthus"
"hope and assurance"
"meadow, open ground"
"orchid flower (Cattleya species)"
Similar sound: These names share phonetic patterns with Nia — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh origins, giving them the same cultural heritage as Nia.
Rhythm: Nia is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.