Lianna sits next to 4 phonetic neighbors — Leanna, Liana, and Lianne are the closest matches by sound. Most share Lianna's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"gracious, God is gracious"
"mounted warrior, horseman"
"night"
"lion of God"
"traveler"
"orange tree (variant of Alani)"
"goddess of spring, month of May"
"flowing, river inlet"
"truthfulness, integrity"
"earth, land"
"young warrior, little warrior"
"bailiff, law enforcer"
"garden, vineyard of God"
"work, labor"
"beautiful flower"
"canopy of leafy boughs"
"quiet, tranquil, peaceful"
"woman from Magdala, tower"
"each of the two"
"little star (possible etymology)"
Similar sound: These names share phonetic patterns with Lianna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew via Anna origins, giving them the same cultural heritage as Lianna.
Rhythm: Lianna is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.