Ruslan sits next to 4 phonetic neighbors — Raslan, Aslan, and Ruslan are the closest matches by sound. Most share Ruslan's Russian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"lion"
"of the lion lineage"
"heroic mortal man"
"lion"
"diminutive form of Zachariasz (God has remembered)"
"little Hasan, very good"
"eagle, golden eagle"
"ruler, king"
"my God is Yahweh"
"blissful, beatified"
"protector of men"
"myrrh, fragrant resin"
"throne of heaven, sky-reaching"
"drawn from the water"
"chaste, modest, pure"
Similar sound: These names share phonetic patterns with Ruslan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Turkic (arslan) origins, giving them the same cultural heritage as Ruslan.
Rhythm: Ruslan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.