Giannis sits next to 5 phonetic neighbors — Yannis, Giovanni, and John are the closest matches by sound. Most share Giannis's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious"
"alive, vital"
"primordial force of attraction"
"mourning (symbolic)"
"power of the gods"
"lover of God"
"saint, holy one"
"light, illumination"
"seeing clearly, sharp-sighted"
"beloved"
"born at dawn, bringer of light"
"God is gracious"
"famous wolf"
"well-born, noble"
"Christ-carrier"
"victory of the people"
"brave as a bear, strong bear"
"of the Octavius clan"
"ravager, one who destroys"
"noble wolf"
Similar sound: These names share phonetic patterns with Giannis — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew (via Greek Ioannis) origins, giving them the same cultural heritage as Giannis.
Rhythm: Giannis is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.