Controllers that have LED support usually have lights that can shine around their buttons or through their sides as well.
The Furaipan by Akekon Dojo is essentially a frying pan with Sanwa buttons. Other options include a Sanwa lever edition.
After the C16's immense success, Haute42 pleasantly surprised the FGC with the C16 Orange, which also upgrades the performance.
The Haute42 C-AS is a slim fightstick that lets you pick the joystick gate and button travel. It has optional analog sticks too.
The HyperX Clutch Tachi is the first arcade controller for fighting games with TMR switches, and it's also Xbox licensed.
The Haute42 V16 Future White has all big buttons, and its LEDs allow you to see it more easily in the dark.
The Haute42 Emotion III-17 has four thumb buttons, a couple of which are pill-shaped, and it has a left pinky button (plus a lanyard loop).
The P12 Pro-Remix is Haute42's third rendition of this controller, and its interpretation of the retro Nintendo aesthetic is quite faithful.
Given the sweltering success of the PadBox GS, Arkodd released the Platform Edition: half a rectangle with a D-pad and analog stick.