Shayne sits next to 3 phonetic neighbors — Shane, Shawn, and Blaine are the closest matches by sound. Most share Shayne's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious"
"little fire (via Aiden root)"
"initials — varies by family"
"victory of the people"
"creative American name, rhythmic and strong"
"of the hawk"
"ruler of the spear"
"good, virtuous (possible East African origin)"
"son of Denis/Dye"
"God has heard"
"black, dark; time"
"tailor, cloth cutter"
"from Arcy (place name)"
"little fire (via Aidan)"
"warrior in the field"
"the cleansing one, the rinser"
"sword"
"from Saint Denis"
"living water, strength"
"musical, expressing personal emotion through song"
"modern invented name, creative variant"
Similar sound: These names share phonetic patterns with Shayne — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew via Irish origins, giving them the same cultural heritage as Shayne.
Rhythm: Shayne is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.