Roux sits next to 4 phonetic neighbors — Rue, Drew, and Lou are the closest matches by sound. Most share Roux's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"reddish-brown, russet-colored"
"brother, friend"
"speech, language, of God"
"land, territory"
"one who bakes bread"
"bright, splendid"
"forever, always + wind/fighter (Ey + vindr etymology)"
"man from the Adriatic"
"one of the Goths"
"divine, godlike"
"chief hero"
"western settlement"
"strong wind"
"a wonder, an omen"
"dear, beloved"
"son of Hugh"
"settlement on the heath"
"large gun, powerful force"
"son of Lawrence"
"ship, navigator"
Similar sound: These names share phonetic patterns with Roux — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have French origins, giving them the same cultural heritage as Roux.
Rhythm: Roux is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.