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"
"noble Mary, radiant beloved"
"literary creation; joyful, beloved"
"divine, heavenly"
"God is gracious"
"white wave, fair phantom"
"watchtower; to watch over"
"joyful, happy"
"fairy queen (folk etymology)"
"queen"
"noble, precious (from Nahuatl-Spanish fusion)"
"work of God, God's labor"
"beloved, wished-for"
"free, from France"
"breath, vapor (from Abel)"
"pure meadow"
"light, luminous"
"rose-like, full of roses"
"I'm on my way (variant of Shania)"
"gracious, dear, beloved"
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.