Gray sits next to 4 phonetic neighbors — Grey, Bray, and Ray are the closest matches by sound. Most share Gray's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"the color gray"
"luminous, shining"
"defender of the army"
"peaceful ruler"
"son of Peter (son of the rock)"
"birth, creation"
"my messenger, my angel"
"God has given"
"modest, shy"
"auspicious mythical creature"
"sea land"
"nobleman of the second rank"
"modern invented name, possibly dark one"
"jewel, precious"
"modern American coinage, bright day"
"invented elaboration of Kameron"
"sculptor, craftsman"
"son of Harry"
"son of the prince/lord"
"pure (short for Catherine)"
"may God protect"
Similar sound: These names share phonetic patterns with Gray — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Gray.
Rhythm: Gray is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.