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"
"famous in battle, glorious warrior maiden"
"pale green, flowering"
"famous warrior"
"fertile plain (if derived from Sharon)"
"bright, famous"
"descendant of the dark stranger"
"flower, bloom"
"noble friend"
"little Dorrit (literary nickname)"
"twin"
"all-wise, all-knowing"
"farmer, earth worker"
"truly supernatural; elf-true"
"son of Neil"
"famous one"
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.