Niko sits next to 4 phonetic neighbors — Nico, Miko, and Theo are the closest matches by sound. Most share Niko's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"victory of the people"
"of Mars, warlike"
"son of Armand, warrior"
"male, masculine"
"honoring God"
"divine healer"
"beloved, may God protect"
"steadfast defender"
"of Mars, warlike"
"valiant, brave"
"manly, brave"
"strength, force"
"healer, to heal"
"victory of the people"
"ever ruler, eternal king"
"God is gracious"
"small, humble"
"glory and power"
"angel; messenger of God"
"brave and powerful"
Similar sound: These names share phonetic patterns with Niko — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Niko.
Rhythm: Niko is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.