Alva sits next to 5 phonetic neighbors — Elva, Alba, and Alma are the closest matches by sound. Most share Alva's Scandinavian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"elf, supernatural being of light"
"she who enlightens, shining"
"silver one, the bright"
"pledge, hostage of noble birth"
"my God is an oath, pledged to God"
"ship, navigation"
"rulers counsel (from Ronald)"
"beloved village"
"devoted to God"
"supplanter, one who follows"
"sky-colored, heavenly blue"
"one of a pair, born together"
"manly, virile"
"thanks, gratitude"
"warm season"
"God is gracious"
"one who brings good luck"
"reference to Our Lady of Nájera"
"beloved"
"thunder battle"
Similar sound: These names share phonetic patterns with Alva — 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 Alva.
Rhythm: Alva is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.