Nico sits next to 4 phonetic neighbors — Niko, Nicki, and Niko are the closest matches by sound. Most share Nico's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"victory of the people"
"to obtain, to receive"
"gentle horse"
"purity, innocence"
"smooth, precious, white"
"diminutive of Cornelia (horn, strength)"
"sky-colored, heavenly blue"
"virtuous, sacred"
"born at Christmas, Christmas child"
"cinnamon, cassia tree"
"grace, favor"
"woman of Judea"
"small stream, brook"
"ascending, rising"
"made from kermes insect dye"
"sea, ocean (alternate etymology)"
"short form of Josephine"
"peaceful, beloved peace"
"oneness, harmony, togetherness"
"pleasant, agreeable, my delight"
"remarkable story, myth"
Similar sound: These names share phonetic patterns with Nico — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek Nikolaos origins, giving them the same cultural heritage as Nico.
Rhythm: Nico is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.