Sevan sits next to 4 phonetic neighbors — Evan, Steven, and Ivan are the closest matches by sound. Most share Sevan's Armenian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"black youth"
"head chief, leader"
"forest dweller, one of the wood"
"descendant of Braol"
"symbol of peace and wisdom"
"from the fortified city"
"sea, ocean"
"sight, ability to see"
"island"
"meadowland, fallow land"
"helpful"
"wreath of flowers, festive crown"
"raised by God, wise"
"noble guardian"
"noble defender (speculative African root)"
"fame-land, renowned in the territory"
"modern coinage, likely 'ace' + -yn suffix"
"bequest, inheritance"
"gatekeeper, one who lives by the gates"
"rye clearing"
"wealthy, well-off"
Similar sound: These names share phonetic patterns with Sevan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Armenian origins, giving them the same cultural heritage as Sevan.
Rhythm: Sevan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.