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"
"handsome, fair one"
"wolf's shield"
"brave spear, strong with a spear"
"modern invention with spiritual connotation"
"honorable, morally excellent"
"loud revelry"
"of God, God's own"
"cloud"
"wealthy, kingly, upholder of good"
"estate dweller"
"guardian spirit, divine being"
"Harry's son, son of the ruler"
"messenger of God"
"wide island"
"ruler of the people"
"place of lime trees"
"black gemstone (fossilized wood)"
"noise, tumult"
"from the heath"
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.