Carlens sits next to 4 phonetic neighbors — Carlos, Carlin, and Carlisle are the closest matches by sound. Most share Carlens's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"free man, strong man"
"God is with us"
"one who stammers"
"crowned with laurel, victorious"
"elevated, grand"
"knight of Jerusalem, Crusader hero (by association)"
"who is like God?"
"All Saints"
"earl, nobleman"
"day (Old English element)"
"vigorous, powerful"
"entire, all-encompassing"
"severe, strict"
"God will uplift"
"bright new home"
"beautiful"
Similar sound: These names share phonetic patterns with Carlens — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic via French origins, giving them the same cultural heritage as Carlens.
Rhythm: Carlens is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.