Dylan sits next to 5 phonetic neighbors — Dillon, Milan, and Julian are the closest matches by sound. Most share Dylan's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of the sea, great tide"
"pure, clean"
"delicate, gentle"
"God is just, my witness is God"
"moon goddess"
"pure"
"God is gracious"
"woman from Magdala"
"fragrant spice"
"deep affection, devotion"
"my God is an oath"
"my God is Yahweh"
"knowledge, wisdom"
"turbulent, passionate (figurative)"
"oak tree meadow"
"golden bloom"
"bright fame, shining fame"
"gentle rose"
"industrious ruler"
"lioness of God"
"lake, waterfall (from Lynn)"
Similar sound: These names share phonetic patterns with Dylan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh origins, giving them the same cultural heritage as Dylan.
Rhythm: Dylan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.