Kayleb sits next to 3 phonetic neighbors — Caleb, Kaleb, and Caylib are the closest matches by sound. Most share Kayleb's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"wholehearted, all heart, faithful"
"of the river (if -von is from Welsh afon)"
"one from the sea"
"authority, firm determination"
"elegant"
"from the rose field"
"noble and ready, prepared for battle"
"God is gracious"
"brick, stone material"
"mythical bird of rebirth"
"possessor of goodness, kingly"
"estate of the fifth son"
"creative compound: Da- prefix + Marcus"
"youthful, downy-bearded"
"homestead on the rock"
"he will laugh, laughter, one who laughs"
"bright, shining, moon-like"
"ocean, sea (from Kai)"
"manly, brave, strong (via Andre/Andreas)"
"night"
Similar sound: These names share phonetic patterns with Kayleb — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew cal-lev origins, giving them the same cultural heritage as Kayleb.
Rhythm: Kayleb is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.