Zylan sits next to 4 phonetic neighbors — Zaylen, Dylan, and Zylen are the closest matches by sound. Most share Zylan's American-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"modern invented name, possibly meaning sky or zeal"
"American creative variation"
"faithfulness, devotion, steadfast allegiance"
"God is gracious (via Hans/John)"
"descendant of the hawk-like one (Irish)"
"one of a kind, without equal"
"letter Z sound"
"cross, the cross of Christ"
"resolute protector"
"fair, white"
"of the (invented compound)"
"resolute protector"
"of the crow, raven-haired"
"Yahweh is gracious"
"handsome, gentle"
"heart, mind, spirit (from Hugh)"
"blond, white, bright one"
"faith"
"son of Japheth, grandson of Noah"
"high, enlightened"
"settlement by a church, church village"
Similar sound: These names share phonetic patterns with Zylan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have American origins, giving them the same cultural heritage as Zylan.
Rhythm: Zylan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.