Aren sits next to 3 phonetic neighbors — Aaron, Arren, and Arin are the closest matches by sound. Most share Aren's Scandinavian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"eagle"
"the fifth"
"lion, lion of God"
"god's field, divine meadow"
"judge"
"brave in counsel"
"lion"
"rune letter, inscribed symbol"
"wolf, wild hunter"
"treasurer, keeper of treasure"
"to close, knot"
"who is like God? (rhetorical — implying no one)"
"rowan tree"
"father of peace"
"lawful, proper"
Similar sound: These names share phonetic patterns with Aren — 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 Aren.
Rhythm: Aren is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.