A mini arcade controller is often so small that there is little to no wrist resting space, but the tradeoff is that you get something portable and so on.
The P12 Pro-Remix is Haute42's third rendition of this controller, and its interpretation of the retro Nintendo aesthetic is quite faithful.
Consider the Yume Tanuki if you'd like a small leverless controller that still has some decent height to it.
BD Retro Mods makes awesome lever and leverless controllers that you can enjoy with retro or modern games.
Mini leverless controllers are a dime a dozen, but it's possible to order the NEM Luna with rare MMD Princess switches.
The Caster Portable can fit a Korean-inspired joystick and has more than eight buttons—plus an optional analog stick. What more do you need?
The Card by Shoebill Gaming can have one or two thumb keys. Its look can also be light wood, dark wood, or custom art.
The Beacon offers you many unique benefits that range from Hall effect switches to a charm loop where you can attach a cute little trinket.
Some of the SiTong H3's extra buttons are to be used by your left pinky, left thumb, right thumb, and right index finger.