Alvida sits next to 4 phonetic neighbors — Alva, Alvina, and Elvida are the closest matches by sound. Most share Alvida's Scandinavian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"elf battle, elf warrior"
"noble friend"
"little Dorrit (literary nickname)"
"flower, bloom"
"fertile plain (if derived from Sharon)"
"goddess of flowers and spring"
"bright, shining"
"descendant of the dark stranger"
"son of Neil"
"truly supernatural; elf-true"
"from Lorraine (kingdom of Lothair)"
"farmer, earth worker"
"twin"
"famous in battle, glorious warrior maiden"
Similar sound: These names share phonetic patterns with Alvida — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Norse origins, giving them the same cultural heritage as Alvida.
Rhythm: Alvida is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.