Amazon could work. Also, a few of the classes from other worlds can be taken across worlds later in the game, though if we start at higher levels...I'm planning on maybe doing one at level 6...and Rowaini males are often Spelljamming sailors and they like going to Amaranthia to hit on Nymphs, so I'd say its possible that you could create a background that would allow for a Nymph with multiclassed Amazon/Swashbuckler, or even Nymph/Swashbuckler. Actually, at level 7, a Nymph6/Swashbuckler1 would be pretty cool. When you take classes from other worlds though, I'm going to be careful about making sure its really for a concept though, and not cherry-picking.