Zyanna sits next to 4 phonetic neighbors — Ziana, Xianna, and Diana are the closest matches by sound. Most share Zyanna's Hebrew Hannah via American invention-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"grace (via -anna suffix)"
"silver one, the bright"
"member of the Gaut tribe"
"alive, living (via Aisha)"
"bearer of good news"
"fleet of ships, navigator"
"thankful, one whom God hears"
"beautiful, good"
"son of Roy, descendant of the king"
"from Britain; British woman"
"wisdom"
"modern invented name, possibly of the forest"
"bright, radiant flower"
"bright grace of God"
"God is gracious"
"of God, divine exaltation (via -iah suffix)"
"lioness of God"
"meadow on a ledge"
"path dweller (feminine form)"
"member of the Gaut tribe"
"day's travel or work"
Similar sound: These names share phonetic patterns with Zyanna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew Hannah via American invention origins, giving them the same cultural heritage as Zyanna.
Rhythm: Zyanna is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.