Triana sits next to 4 phonetic neighbors — Ariana, Diana, and Tiana are the closest matches by sound. Most share Triana's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from Triana, of the three rivers"
"place name, possibly crown or river settlement"
"moon"
"little rose, rose garden"
"white wave, fair phantom"
"jazz music woman"
"dark beauty"
"fairy queen (folk etymology)"
"free, from France"
"beautiful, gracious"
"palm tree (Jessenia genus)"
"sail"
"black, dark"
"work of God, God's labor"
"of the Aelia clan"
"days eye, the sun"
"pure meadow"
"blessing, unmerited favor"
Similar sound: These names share phonetic patterns with Triana — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin/Spanish place name origins, giving them the same cultural heritage as Triana.
Rhythm: Triana is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.