I loved this thing as a kid https://www.oldschoolgamermagazine.com/crazy-controllers-the-super-pad-64/

Instead of three grips like a normal n64 controller, it had two. It combined the left and middle grips into one. So the d pad, analog stick, L, and Z buttons were all on one grip. I don't know how the economics would hold up today, but they were great for me back then.

It also had turbo buttons, which is always nice.