Zeus sits next to 4 phonetic neighbors — Zane, Zephyr, and Deus are the closest matches by sound. Most share Zeus's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sky father, divine sky"
"from Denmark, a Dane"
"heel, sharp point"
"he who holds firm the good"
"west wind"
"modern invented name, possibly 'sincere air' or 'great river'"
"strength, vigor"
"powerful ruler"
"resolute protector"
"pure (short for Catherine)"
"modern blend of Tyler and Dylan"
"bearer of Christ"
"primordial deity, elder god"
"honorable, morally excellent"
"sea"
"herb garden settlement"
"praise through music"
"reed island, island near the clearing"
"ruler of the sea"
"helmet of will, guardian"
Similar sound: These names share phonetic patterns with Zeus — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Proto-Indo-European origins, giving them the same cultural heritage as Zeus.
Rhythm: Zeus is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.