Rook sits next to 5 phonetic neighbors — Duke, Brook, and Luke are the closest matches by sound. Most share Rook's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"a crow-like black bird"
"Yahweh has shown favor"
"blessed"
"blond, yellow-haired"
"God saves"
"friend of God, beloved by God"
"new house, bright (via Xavier heritage)"
"hunter"
"gift of God (via Welsh David)"
"rulers advisor, mighty counselor"
"concluding musical passage"
"bright fame"
"resolute protector"
"archer, bow-wielder"
"Sacred to Juno"
"worthy, powerful"
"little barrel"
"possible Japanese aesthetic: figure, image"
"crossroads, cross"
"hero, brave warrior"
Similar sound: These names share phonetic patterns with Rook — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Norse origins, giving them the same cultural heritage as Rook.
Rhythm: Rook is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.