Verlen sits next to 5 phonetic neighbors — Verlene, Verna, and Merle are the closest matches by sound. Most share Verlen's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"alder tree grove (from Gaulish via Vernon)"
"tuft, bump, rounded protrusion"
"the dawn, daybreak"
"peaceful ruler"
"free woman"
"dear friend"
"God will increase; from a wooded valley"
"spear ruler"
"little Jon, feminine form of Jon"
"joy, bliss"
"Island (from the Scottish island of Tiree)"
"elaboration of Audrey with French -ene suffix"
"feminized form of Burl with melodic -line suffix"
"resolute protector"
"From the north; a northerner"
"lilac, bluish"
Similar sound: These names share phonetic patterns with Verlen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Gaulish/French origins, giving them the same cultural heritage as Verlen.
Rhythm: Verlen is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.