Marko sits next to 3 phonetic neighbors — Marco, Marcus, and Marcelo are the closest matches by sound. Most share Marko's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"consecrated to Mars"
"priceless one, beyond praise"
"supplanter, one who follows at the heel"
"powerful decision-maker"
"Yahweh is merciful"
"beauty, ornament"
"steadfast, permanent"
"one who frees men"
"song, poem"
"rules with peace/fame"
"bright warrior, famous warrior"
"strong, healthy"
"may God give increase"
"short form of Orlando, famous land"
"counsel power, ruler's counsel"
"eighth-born"
"strong boar"
"garden of God"
Similar sound: These names share phonetic patterns with Marko — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Marko.
Rhythm: Marko is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.