Kailh Choc switches may be the most popular switches out there when it comes to leverless and similar controllers on the market.
Arborcade makes classy wooden controllers without sacrificing performance, such as a walnut or mahogany controller with Sanwa buttons.
The Superslab Digital Combat Controller is a smaller LED controller by Prong for Super Smash Bros players.
The Stress Pocket Arcade Fight Pad is a mini WASD controller with unusual angles that may appeal to you more than the usual layout.
The KeebFighter-01 is Mavercade's ultra-thin minimalistic leverless controller with slanted keys, a spacebar, and six auxiliary buttons.
SaveYourGames brings you the Impact all-buttons controller that can come with a Brook PCB and Kailh switches.
From the United Kingdom with love, the BentoBox Arcade Pad features Kailh Choc V2 switches, RGB LED, and the capability of custom art.
The Pinebox is a stickless controller that is made of pinewood and is also available in a Super Smash Bros layout.
The Jabslab Digital Combat Controller is a mini LED controller with customizable artwork and other included goodies.