There are different types of controllers to play fighting games, and the types range from arcade sticks to leverless controllers (and beyond).
Available in preassembled & DIY formats, the PadBox is a plastic D-pad controller with Sanwa buttons, Omron switches, and custom LED.
The Panzer Fight Stick 5 is comprised of fully machined aluminum with a plexiglass overlay, meaning custom art is possible.
The Schism is an ergonomic Super Smash Bros controller that can be folded after you are done with a session.
The LVL is a leverless controller with a hot swappable PCB as well as a built-in slot for an adapter to enhance compatibility options.
The TIKITAKA T16 is a stickless controller with 16 buttons, and its dual layout allows you to use it as a WASD controller as well.
Panda Fighting offers a variety of all-button controllers in different layouts and sizes, such as this controller that has 16 buttons.
The FightBox K1 can come in white or black as well as K2 & K10 editions that have a joystick and more buttons respectively.
Mayflash decided to enter the stickless market with the F500 FLAT that has two extra buttons for Street Fighter 6 and beyond.