Reyden sits next to 5 phonetic neighbors — Hayden, Raiden, and Aiden are the closest matches by sound. Most share Reyden's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"king of the valley"
"from the grassy plains"
"modern invented name, possibly from bay + -lan suffix"
"my messenger, my angel"
"son of Anne"
"man of the army"
"swift as a deer"
"Yahweh has heard"
"victorious one"
"warlike, of Ares"
"God is gracious"
"settlement by the bridge"
"people's ruler"
"possession, acquisition"
"lake, pool, waterfall"
"song, nightingale"
"my joy, my song"
"settlement of Jay, from Jay + ton"
"son of (Celtic prefix) + divine"
"olive warrior"
"chosen, selected, picked out"
Similar sound: These names share phonetic patterns with Reyden — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have English (invented) origins, giving them the same cultural heritage as Reyden.
Rhythm: Reyden is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.