Perseus sits next to 3 phonetic neighbors — Percival, Percy, and Theseus are the closest matches by sound. Most share Perseus's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"ravager, one who destroys"
"shining with fame"
"bold counsel, brave advisor"
"hero, protector (fictional)"
"bright settlement, day town"
"divine bear"
"Canaan, land of merchants"
"dear, beloved (associated folk etymology)"
"Zion variant, promised land"
"modern American coinage, bright day"
"gift of God"
"warrior"
"divine, god"
"outer wall of a castle (bailey)"
"goodness of Yahweh"
"noble elder"
"he gave, gift"
"bent river or stream"
"land desiccated from water"
"cart maker, transporter"
Similar sound: These names share phonetic patterns with Perseus — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Perseus.
Rhythm: Perseus is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.