Xianna sits next to 3 phonetic neighbors — Gianna, Xiomara, and Savanna are the closest matches by sound. Most share Xianna's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious"
"torch, sun ray"
"traditional flat sandal (object, not name meaning)"
"she who is victorious"
"place name from the Lima River valley"
"gentle horse"
"joyful, exuberant"
"wise, a wise person"
"divine, royal"
"the beloved, darling"
"noble, exalted"
"exaltation (Selah)"
"of God, belonging to the divine (from -iyah suffix)"
"modern blend, possibly dark and heavenly"
"son of Carr, marsh dweller"
"grey fortress"
"divine, heavenly"
"God has heard"
"light brown color (hazel eyes)"
"city of mosaics"
"manly, virile"
Similar sound: These names share phonetic patterns with Xianna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew via Italian origins, giving them the same cultural heritage as Xianna.
Rhythm: Xianna is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.