Eros sits next to 3 phonetic neighbors — Ares, Heros, and Cyrus are the closest matches by sound. Most share Eros's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"primordial force of attraction"
"light, illumination"
"guardian spirit, divine being"
"friend, darling"
"battle genius"
"mountain goat, ibex"
"God has made"
"from the Germanic people"
"flower"
"shortened form of Aristotle: best purpose"
"peaceful ruler"
"staff bearer, wand wielder"
"the opportune or right moment"
"well-born, noble"
"dark-skinned, Moorish"
"from the Paulus family"
"soaring, high-flying"
"beauty, ornament"
"power of the gods"
"to light up, illuminate"
Similar sound: These names share phonetic patterns with Eros — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Ancient Greek origins, giving them the same cultural heritage as Eros.
Rhythm: Eros is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.