Gene sits next to 4 phonetic neighbors — Jean, Dean, and Keen are the closest matches by sound. Most share Gene's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"well-born, of noble descent"
"elder, respected one"
"divine strength"
"devotee of Saint Columba"
"famous ruler"
"I am, self-existence, declaration of being"
"dear, beloved"
"powerful natural force"
"lion strength"
"king, lord of the people"
"settlement by a bird-trap"
"resolute fame, desired renown"
"hard, unyielding"
"world ruler"
"the Lord is my God"
"enlightenment, awakening"
"my rock is God"
"narrow land, island"
"defender of the people"
"fair-haired one"
"variant of Caleb, meaning faithful"
Similar sound: These names share phonetic patterns with Gene — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Gene.
Rhythm: Gene is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.