Arshan sits next to 3 phonetic neighbors — Arshad, Arsh, and Roshan are the closest matches by sound. Most share Arshan's Persian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"throne of heaven, sky-reaching"
"sun, love, benevolence"
"lion"
"God is my judge"
"happy, fortunate"
"drawn from the water"
"garden of paradise"
"the all-glorious, sublime"
"sun"
"great, magnificent, mighty"
"leader, commander, chief"
"man of peace"
"joy, happiness"
Similar sound: These names share phonetic patterns with Arshan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Persian origins, giving them the same cultural heritage as Arshan.
Rhythm: Arshan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.