If the Mad Catz NEKO's buttons are too many for your needs, then the NEKO KO's lesser buttons might appeal to you.
You can use the Hori Arcade Classic Pro's ball-top joystick, rotary joystick, trackball, and spinner modules with your right or left hand.
The HauteBox One is a wireless split-layout controller with lever and leverless modules that are interchangeable.
The Mixbox 2 improves upon the first Mixbox by having three layouts in one: WASD, leverless, and hitstick layouts.
The Haute42 W-P1 is a sloped controller with an optional wireless connection, and it is available in white as well.
Compared to its predecessor, one of the BHT2's right thumb buttons has been repositioned, and its left thumb button became circular.
The Alpenmeister TE's Hall effect switches allow you to adjust the button sensitivity, and there are also D-pad buttons near the aux buttons.
The Modernbox is an ergonomic controller with a custom layout optimized for Street Fighter 6 modern controls, and it can come with a joystick.