There are few things you'll need to decide when shopping for an outdoor smart plug. Which voice assistant do you use? How many outlets do you want? Some models just have one outlet and some have two.
Look at the new receptacle—there should be a silver terminal and brass terminal for each outlet on the receptacle; most two-plug receptacles will have two silver terminals and two brass terminals.
One of the best things you can do to improve your speaker wire situation is to install banana plugs that can be plugged right into compatible speaker or receiver/amplifier terminals, similar to ...