Shane sits next to 5 phonetic neighbors — Shaine, Shayne, and Shawn are the closest matches by sound. Most share Shane's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious"
"defender of mankind"
"divine, goddess"
"pure"
"bright fame"
"anointed one (short form of Christina)"
"fair shoulder"
"other, foreign"
"beloved, darling"
"dark, rich"
"free man"
"beam of light"
"deep, profound"
"flowering; bright blossom"
"contemplation, beholding"
Similar sound: These names share phonetic patterns with Shane — 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 Shane.
Rhythm: Shane is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.