Dwayne sits next to 3 phonetic neighbors — Duane, Wayne, and Shane are the closest matches by sound. Most share Dwayne's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"little dark one"
"diminutive of Isaiah (Yeshaya)"
"son of the bright pledge"
"one who builds"
"modern invented name, possibly dark one"
"peace, security"
"related to Thor (thunder)"
"land of the Bronck family"
"emperor, supreme ruler"
"savior"
"strong-willed warrior"
"brotherly, genuine"
"growth, abundance, increase"
"son of Javan, modern invention"
"oracle, mouth of the serpent"
"owner, possessor"
"associated with luxury and elegance"
"bent grass clearing, meadow"
"sad, melancholy (folk etymology)"
"gift of God"
"invented modern American name"
Similar sound: These names share phonetic patterns with Dwayne — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Dwayne.
Rhythm: Dwayne is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.