Marvel sits next to 4 phonetic neighbors — Marv, Jarvel, and Arvel are the closest matches by sound. Most share Marvel's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"wonder, miracle, something astonishing"
"variant of Aidan, meaning little fire"
"he who holds firm to good"
"clearing in the forest"
"lord, ruler"
"patient, steadfast, enduring"
"yew warrior"
"of the estate"
"cup, chalice"
"of the royal house, noble"
"head chief, leader"
"variant of Kevin (handsome, beloved)"
"supplanter who is like God (James + Michael)"
"of Saturn, god of agriculture and time"
"beloved son"
"variant of Jason (Greek: healer) or Jayden (Hebrew: God has heard)"
"little blind one, the blind one"
"little churchman, associated with the church"
"born on All Saints Day"
"Yahweh has heard"
"noble friend"
Similar sound: These names share phonetic patterns with Marvel — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French/Latin origins, giving them the same cultural heritage as Marvel.
Rhythm: Marvel is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.