[Discussion] What are your definitive (or alternative) accessories, controllers, etc for the Steam Deck?

Can't go wrong with a Dualsense controller. Steam Input works great with it, and it has a touchpad, tilt sensor, analog triggers, and you can even remap the 'mute' button. Mine has the Rise4 paddles mod, which isn't quite like the steam deck's remappable grip buttons, but its close enough for most games where I'd want them.