12 button controllers are how leverless controllers started—since you have four buttons for directional inputs and eight buttons for attack inputs.
The HyperX Clutch Tachi is the first arcade controller for fighting games with TMR switches, and it's also Xbox licensed.
The P12 Pro-Remix is Haute42's third rendition of this controller, and its interpretation of the retro Nintendo aesthetic is quite faithful.
You can order the OKI Hatch Service Deck by JackWagon FightSticks in a lever or leverless format—yet its star feature is its hinged lid.
Instead of the usual LEDs glowing around buttons, the LP-01's lights glow through strips on its top, side, front, and back panels.
The Huntsman is a batarang-shaped leverless controller with 12 main buttons—as well as two Hall effect analog sticks.
The Bishop|Select Opal is a more affordable version of the Maestro, and it's ergonomic—but not too ergonomic in a way that's unfamiliar.
The FightBox A10's silent Crown buttons allow you to perform at a high level without giving away your button presses to your nearby opponent.
Consider the Yume Tanuki if you'd like a small leverless controller that still has some decent height to it.