Marvens sits next to 4 phonetic neighbors — Marvin, Marcus, and Mavens are the closest matches by sound. Most share Marvens's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"marvelous, wonderful"
"bright heart, brilliant mind"
"light of God (related to Uriel)"
"beautiful mountain"
"lord of the marches, border lord"
"God, the Lord"
"of gold, golden one"
"power of the homeland"
"elf ruler"
"gift of Isis"
"from Sebastos (venerable city)"
"hunting grounds"
"God is gracious"
"God is gracious"
"manly, strong"
"rock (via Peter)"
"strong, enduring"
Similar sound: These names share phonetic patterns with Marvens — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have French origins, giving them the same cultural heritage as Marvens.
Rhythm: Marvens is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.