Arden sits next to 4 phonetic neighbors — Arlen, Jordan, and Hayden are the closest matches by sound. Most share Arden's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"great forest, eagle valley"
"son of James"
"new"
"made by God"
"raven-like, dark as a raven"
"defender of men"
"stone worker (via Mason)"
"tall stone"
"God will uplift (from Jeremy/Jeremiah)"
"beloved of God"
"faith, pledge"
"cloud"
"one who catches fish"
"genuine, real, authentic"
"Trent's town, settlement on the Trent"
"sweetheart, dear one"
"help, helper"
"barrel maker, cask craftsman"
"rock, stone"
Similar sound: These names share phonetic patterns with Arden — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Celtic/Old English origins, giving them the same cultural heritage as Arden.
Rhythm: Arden is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.