Indiana sits next to 3 phonetic neighbors — Indiana, Savannah, and Adriana are the closest matches by sound. Most share Indiana's American English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"land of the Indians"
"modern blend of Ty + Reese"
"descendant of Jenkin"
"ancestor descendant"
"protector, helper of mankind"
"son of Brice; son of Bryce"
"calm, tranquility"
"rowan tree"
"Aromatic herb, salvia"
"beloved"
"lord, master"
"son of the prince (elaborated form)"
"curly-haired"
"little red-haired one"
"one who lives near a steep bank"
"son of Carr, from the marsh"
"rope maker, cord seller"
"to flow, the descending river"
"from, of (noble German particle)"
"he enlightens, God enlightens"
"battle, fighter"
Similar sound: These names share phonetic patterns with Indiana — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have American English origins, giving them the same cultural heritage as Indiana.
Rhythm: Indiana is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.