A leverless controller is supposed to eliminate sluggish joystick movements. Sometimes, it has only buttons or a mixture of buttons and keys.
Eternal Rival offers a multitude of cases, with this one being the Mid Tier Stickless Mini that can be as fancy or simple as you want.
This is a budget controller that is available in many variations and is a decent option if you would like to try leverless controllers.
Ash Huang presents this controller that is available in leverless, WASD, fightstick, and custom formats with custom art as well.
This is an all-keys controller with keys that are straight instead of being slanted, but you can also request different layouts.
Fightstick Guy offers a few premium fightsticks, one of which is this M. Bison edition that has golden Sanwa parts.
Brook is best known for providing printed circuit boards, so this fightstick that was once limited edition was a surprise to see.
Revolution Sticks makes unique fightsticks ranging from a guitar-looking fightstick to a simpler yet still flashy fightstick: the REV14.
Stickless offers some of the most customizable controllers in the history of the fighting game community, including performance & appearance.