Masha sits next to 4 phonetic neighbors — Sasha, Dasha, and Mia are the closest matches by sound. Most share Masha's Russian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"of the sea, bitter"
"tender, delicate"
"rival, emulator (via Camilla/Aemilia)"
"dew, generosity"
"God is gracious"
"virtuous, sacred"
"victory of the people"
"lily flower, pure as a lily"
"wisdom"
"gracious, dear"
"fairy queen"
"dawn, morning light"
"pure, unsullied"
"golden, made of gold"
"God is gracious, God is merciful"
Similar sound: These names share phonetic patterns with Masha — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew via Maria origins, giving them the same cultural heritage as Masha.
Rhythm: Masha is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.