Dastan sits next to 4 phonetic neighbors — Dustin, Destan, and Tristan are the closest matches by sound. Most share Dastan's Persian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"story, tale, legend"
"falcon (symbol of nobility and the seeking soul)"
"state leader, country chief"
"one who provides and leads"
"lord, master"
"great, greatest"
"honorable, magnanimous"
"prince, son of a lord"
"friend, companion"
"light, radiance, splendor"
"contentment, divine satisfaction"
"eloquent, articulate (from Bayan)"
"commander, leader"
"answered prayer"
"most praised, highly commended"
"radiance, luminosity"
"sharp, precise"
Similar sound: These names share phonetic patterns with Dastan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Persian origins, giving them the same cultural heritage as Dastan.
Rhythm: Dastan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.