Halina sits next to 3 phonetic neighbors — Helena, Alina, and Galina are the closest matches by sound. Most share Halina's Polish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"bright, shining light"
"woman from Magdala, tower"
"founder; one who establishes"
"hope"
"gift of God"
"wisdom, skill"
"slender young tree, shoot"
"daughter of the sun (folkloric)"
Similar sound: These names share phonetic patterns with Halina — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Halina.
Rhythm: Halina is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.