Kopen sits next to 4 phonetic neighbors — Kobe, Cohen, and Copen are the closest matches by sound. Most share Kopen's Dutch-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"to buy, to trade, merchant"
"a magical charm or spell; also a curse"
"modern invented name combining elements of strength and wisdom"
"lone champion"
"poet, one who feels deeply"
"prince"
"destruction, ruin"
"little ruler"
"blessed one"
"from the barley meadow (topographic)"
"river, water course"
"king who speaks wisdom"
"one who illuminates"
"Water of life; the distilled spirit drink"
"Inspired by the Japanese Kaizen philosophy meaning 'continuous impr..."
"mercy of God"
"pure, bright, shining"
Similar sound: These names share phonetic patterns with Kopen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Dutch/Germanic origins, giving them the same cultural heritage as Kopen.
Rhythm: Kopen is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.