Taquanna sits next to 4 phonetic neighbors — Tawanna, Shawana, and Tequila are the closest matches by sound. Most share Taquanna's African-American coinage-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Modern invented name; no established etymology"
"darling, dear one"
"son of Brice"
"altar of the sky, heavenly altar"
Similar sound: These names share phonetic patterns with Taquanna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have African-American coinage origins, giving them the same cultural heritage as Taquanna.
Rhythm: Taquanna is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.