Valerian sits next to 4 phonetic neighbors — Valerian, Florian, and Damian are the closest matches by sound. Most share Valerian's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"strong, healthy"
"king + world (folk etymology)"
"of the world"
"my people"
"beloved, good"
"stern, serious"
"day (Old English element)"
"noble strength"
"constant, steadfast"
"flat-footed"
"bright new home"
"Cathay, the Middle Kingdom"
"set apart, holy"
"of Julius, born in July"
"of Ibelin (place name origin)"
"man"
"God with us, divine presence"
Similar sound: These names share phonetic patterns with Valerian — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Valerian.
Rhythm: Valerian is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.