A hitstick is when you have an arcade stick but with extra buttons that allow you to use the buttons and joystick for movement.
The Studio is so customizable that—in addition to its layout—you can pick the colors of its buttons' rims.
The Cross|Up allows you to simultaneously use a joystick and buttons to input directions, creating new possibilities.
Ultra Arcade's Standard series is a reasonable entry point into its customizable controllers, and there are Pro & Lite editions available.
The AFG-controller is a fully customizable beauty that is sturdy, lightweight, and comes in multiple variations.
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.
Ash Huang presents this controller that is available in leverless, WASD, fightstick, and custom formats with custom art as well.
Stickless offers some of the most customizable controllers in the history of the fighting game community, including performance & appearance.
2nd Impact is one of the world's most innovative makers of fighting game controllers, and it has something for everyone.