Greta sits next to 5 phonetic neighbors — Gretchen, Greta, and Petra are the closest matches by sound. Most share Greta's German-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"pearl"
"pleasant meadow"
"middle of the plain"
"God is my help"
"exalted one, the high one"
"noble, of noble kind"
"wealthy, possessor"
"ocean, shell"
"famous warrior"
"bright, shining light"
"lily flower"
"superiority, excellence"
"honor, victory"
"princess of the water"
"God is just, my witness is God"
"God is gracious, God has shown favor"
"strong, full-grown"
"free woman"
"clearing on the hill"
"beautiful, pretty"
"sunlight, moon (alternate etymology)"
Similar sound: These names share phonetic patterns with Greta — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic, from Greek margarites origins, giving them the same cultural heritage as Greta.
Rhythm: Greta is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.