Daylon sits next to 5 phonetic neighbors — Dillon, Dalan, and Jaylen are the closest matches by sound. Most share Daylon's Old English (via Dillon/Dale)-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"valley settlement"
"promised land, holy city"
"from the Isle of Bute (Bòid)"
"initial-name, typically Andrew James or Anthony John"
"universe, cosmos"
"seeking of a noble goal"
"protector, helper of mankind"
"modern invented elaboration of Ezra"
"modern invented name with noble, airy connotations"
"star"
"son of the famous ruler"
"enlightened rice (kanji: 悟飯)"
"Majestic, inspiring reverence"
"son of the prince (elaborated form)"
"thankful"
"of the Vandal people"
"divine power, God's rule"
"gift of God"
"emperor, ruler (inspired by Kaiser/Caesar)"
"invented modern name, no classical meaning"
"settlement on a Roman road, farm on the paved way"
Similar sound: These names share phonetic patterns with Daylon — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English (via Dillon/Dale) origins, giving them the same cultural heritage as Daylon.
Rhythm: Daylon is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.