The Xanathar dub-vlass points me to educated warrior and nobleman, almost the sort of classic "adventurer trope" of Verne and Burrows - courtly and deadly.Samurai is basically Japanese for knight, and wide variety of fighting styles would be appropriate (including archery, something a European knight would have considered a pastime for peasants).
It's really more of a Background (noble) and alignment (lawful) thing.
The Xanathar's subclass makes me think "elvish" if it makes me think of anything at all.