Nikos sits next to 5 phonetic neighbors — Nico, Nicolas, and Nikolai are the closest matches by sound. Most share Nikos's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"victory of the people"
"devoted to Dionysus, of Dionysus"
"of Arcadia, from the pastoral paradise"
"strong man"
"personal spirit, divine guardian"
"calf, young animal"
"beauty, charm"
"divine gift"
"beautiful, most beautiful"
"Yahweh saves"
"gift of healing"
"man of Attica, from Athens"
"greatest (superlative of great)"
"China, land of the Khitan"
Similar sound: These names share phonetic patterns with Nikos — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Nikos.
Rhythm: Nikos is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.