Riven sits next to 5 phonetic neighbors — River, Riven, and Griffin are the closest matches by sound. Most share Riven's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"split, torn apart"
"literary name: the ranger Aragorn"
"bower, canopy of branches"
"elevated, sublime, lofty"
"wide, vast"
"strong ruler"
"God is gracious"
"modern American creation (Trevor root: large homestead)"
"one who wrangles livestock; a cowboy"
"famous ruler"
"small stream, narrow inlet"
"rejoice, be glad (via Gaius/Caio)"
"may God protect"
"of God"
"night visitor, one who arrives at dawn"
"God is gracious, Yahweh is gracious"
"little joy"
"sky blue, cerulean"
"descendant of Braonán (moisture/sorrow)"
"slender, narrow"
"swift, decisive attacker"
Similar sound: These names share phonetic patterns with Riven — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English/Old Norse origins, giving them the same cultural heritage as Riven.
Rhythm: Riven is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.