Mccrae sits next to 4 phonetic neighbors — McCray, McRae, and Macrae are the closest matches by sound. Most share Mccrae's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of grace, son of good fortune"
"fortress, military camp"
"son of Judd, son of the praised one"
"master, mister (honorific)"
"high, noble, exalted"
"helpful, one who provides assistance"
"a days work or travel"
"upright, righteous"
"rock, stone"
"immortal, ever-living"
"victory of the people (via Nicholas root)"
"place name origin: a hundred in Cornwall, England"
"farmer, earthworker"
"open grassy plain"
"craftsman, artisan"
"dear one, beloved"
"sea-connected, modern creative"
"ford belonging to the king"
"hero of God, man of God"
"winding homestead"
Similar sound: These names share phonetic patterns with Mccrae — 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 Mccrae.
Rhythm: Mccrae is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.