Arsh sits next to 3 phonetic neighbors — Harsh, Ash, and Arash are the closest matches by sound. Most share Arsh's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"divine throne"
"beautiful king"
"young plant, sapling"
"shining, bright"
"strong, disciplined, powerful"
"noble, nobility"
"morning breeze"
"grace, divine bounty, overflowing"
"the world, universe"
"great praiser of God"
"charitable, benevolent"
"northeast direction, auspicious"
"righteous, equitable"
Similar sound: These names share phonetic patterns with Arsh — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Arsh.
Rhythm: Arsh is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.