Arsalan sits next to 4 phonetic neighbors — Arslan, Arshan, and Ruslan are the closest matches by sound. Most share Arsalan's Persian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"lion"
"lion"
"sun, shepherd"
"entertaining companion, engaging conversationalist"
"one with many soldiers"
"army of the ruler, warrior chief"
"Goodness, blessing, benefit"
"victory, divine triumph"
"dove"
"the safe one, one who is saved"
"announcement, proclamation"
"enchanting, magical"
"gracious gift"
"from Rome (Rum/Anatolia)"
"far-sighted"
"lion"
Similar sound: These names share phonetic patterns with Arsalan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Turkic origins, giving them the same cultural heritage as Arsalan.
Rhythm: Arsalan is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.