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"
"glorious, noble, honored"
"sun"
"man of peace"
"lion"
"happy, fortunate"
"great, magnificent, mighty"
"God is my judge"
"leader, commander, chief"
"one full of kindness and light"
"drawn from the water"
"sweet basil, fragrant herb"
"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.