Shayan sits next to 3 phonetic neighbors — Shane, Shawn, and Shan are the closest matches by sound. Most share Shayan's Persian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"worthy, deserving"
"good, beautiful, handsome"
"sky, heaven, space"
"one guided by God"
"of the royal dynasty"
"dark-haired"
"one who removes sins, pure-hearted"
"may He add"
"prophet Younis, a Quranic figure"
"throne"
"little Hassan"
"may He (God) add"
"worshipper of Al-Rahman"
"happy, fortunate, blessed"
"O human being (one interpretation)"
"youthful, young, vigorous"
"one who bridges obstacles"
Similar sound: These names share phonetic patterns with Shayan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Persian origins, giving them the same cultural heritage as Shayan.
Rhythm: Shayan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.