Eredin sits next to 4 phonetic neighbors — Brendan, Aiden, and Eridan are the closest matches by sound. Most share Eredin's Fantasy-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"fictional villain name from The Witcher"
"bearer of Christ"
"descendant of Freyr, little lord"
"noble, ready"
"one who grants charters, document giver"
"From the boar meadow; ever-lasting meadow"
"iron, strength"
"iron strong"
"winding stream, crooked well"
"related to vitality, life force"
"modern American coinage, unique creation"
"duty, obligation"
"possibly derived from jet (black gemstone) or speed"
"lion"
"ancestor's relic, heir of ancestors"
Similar sound: These names share phonetic patterns with Eredin — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Fantasy origins, giving them the same cultural heritage as Eredin.
Rhythm: Eredin is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.