Daylen sits next to 4 phonetic neighbors — Jaylen, Dalen, and Daylan are the closest matches by sound. Most share Daylen's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from the dale, valley dweller"
"famous army, warrior people"
"holy river"
"God has been gracious"
"noisy disturbance, civil commotion"
"jewel, gem"
"son of Hans/John"
"man from the north, Northman"
"protected by Yahweh"
"wealthy protector"
"bold, fearless one"
"strong, upright"
"modern invention with spiritual connotation"
"God has healed"
"my messenger, my angel"
"dweller in the valley"
"God enlightens, He shines"
"built by the Lord"
"God has helped"
"from Airelle (a place in Normandy, France)"
"village of the cross, farm by the cross"
Similar sound: These names share phonetic patterns with Daylen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English (inferred) origins, giving them the same cultural heritage as Daylen.
Rhythm: Daylen is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.