Check out these custom Joy-Con grips a modder created to try and make his Switch feel more ergonomic in handheld mode. They aren’t the slickest looking it’s an interesting DIY solution to Switch’s existing flat, somewhat cramped layout. A full video of the custom grips along with instructions are available on Reddit.
That's like... The opposite direction that would make them ergonomic. They should tilt the other way, which is why all modern game controllers are tilted the opposite way. Freaking weird.