Marsel sits next to 4 phonetic neighbors — Marcel, Marcello, and Marco are the closest matches by sound. Most share Marsel's Latin-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"of Mars, little warrior"
"devoted to Demeter, of the earth goddess"
"victory of the people"
"drawn from the water"
"God is Lord (variant of Elijah)"
"beloved of God"
"protector of people"
"victory of the people"
"victory of the people"
"devoted to Demeter, goddess of harvest"
"holds firm the good"
"the greatest, greatest one"
Similar sound: These names share phonetic patterns with Marsel — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Marsel.
Rhythm: Marsel is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.