One can argue that Amazon is the most popular for ordering fightsticks, meaning controllers with a joystick, but it also has great leverless controllers.
If you don't need 16 or more buttons: the VSLAB VSNOVA N14 is a fine option with chamfered acrylic, customizable art, and cool LED.
The TIKITAKA M3 doesn't have 16 buttons. It has 17, and the 17th button is a rare fully sized start button on the top panel's upper left.
Even though the MustFun Board looks like the Haute42 B16, it has some interesting differences, such as an onboard screen.
At a first glance, you may think this is a DOIO controller, but in reality—this is the NLOFIN NLHX-ET01: a 16 button controller with LED.
The Haute42 V16 is a large yet light 16 button controller with textured matte keycaps and fast Shadow Hunting switches—plus shiny LED.
The star feature of the TIKITAKA E16 is definitely how you can customize its button layout completely and increase your winning chances.
The X1 is Haute42's first attempt at a modular design, with the WASD buttons being rotatable and even replaceable with a joystick!
If you look closely, the two buttons surrounding the Haute42 M16 Ultra's jump button are almost placed horizontally straight.