Susia sits next to 5 phonetic neighbors — Suzie, Susan, and Lucia are the closest matches by sound. Most share Susia's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"lily, rose"
"healthy, whole, renowned"
"other, foreign"
"from Denzell (estate in Cornwall)"
"elf guardian, noble protector"
"rejuvenation, pleasure"
"hazelnut, little bird"
"ancestral heritage (via Olaf)"
"from the kingdom of Lothar, from the Lorraine region"
"the third month, heralding spring"
Similar sound: These names share phonetic patterns with Susia — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Susia.
Rhythm: Susia is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.