Marianna sits next to 5 phonetic neighbors — Mariana, Marianne, and Arianna are the closest matches by sound. Most share Marianna's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"grace and drop of the sea (Maria + Anna)"
"meadow of quivering aspens"
"rocky hill, hill of kings"
"crown of laurels"
"meadow clearing, heath clearing"
"beloved, wished-for child (from Hebrew Miriam via Mary)"
"gift of God (variant of Maisie/Matthew)"
"shelter, protection"
"bright, shining light"
"rising, ascending"
"bright village"
"Mary's gold, golden flower of Mary"
"tree village (from Japanese Kimura)"
"hollow, cauldron"
"from the green valley"
"successful"
"sun"
"rose + gentle (folk etymology)"
"famous warrior"
"variant of Jackie or Casey"
"glorious sky, exalted heaven"
Similar sound: These names share phonetic patterns with Marianna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin/Hebrew compound origins, giving them the same cultural heritage as Marianna.
Rhythm: Marianna is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.