Blayne sits next to 3 phonetic neighbors — Blaine, Shane, and Wayne are the closest matches by sound. Most share Blayne's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"slender, lean, narrow"
"son of Dax"
"young warrior"
"thank you, grateful"
"faithfulness, devotion, steadfast allegiance"
"bright, shining one"
"hill, marshland"
"wonder, sign"
"dark one, little dark-haired one"
"battle, warrior chief"
"light, radiance"
"strong power"
"prince, royal heir"
"elm tree"
"ascent, high"
"gift (modern American coinage)"
"head, chief (as in penultimate)"
"the shining one"
"my flock belongs to God"
"nautical mile, measure of sea distance"
Similar sound: These names share phonetic patterns with Blayne — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Scottish Gaelic origins, giving them the same cultural heritage as Blayne.
Rhythm: Blayne is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.