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"
"cypress tree"
"people's champion"
"divine, of Zeus"
"divine power, God's power"
"staff bearer, wand wielder"
"light, illumination"
"glory-wolf; renowned warrior"
"seeing clearly, sharp-sighted"
"life"
"God is gracious"
"soaring, high-flying"
"safe, unharmed (proposed etymology)"
"from the Paulus family"
"my God has helped"
"brave as a bear, strong bear"
"eighth"
"from Mauritania"
"free man"
"from Laurentum, of the laurel"
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.