A leverless controller is supposed to eliminate sluggish joystick movements. Sometimes, it has only buttons or a mixture of buttons and keys.
What more can you ask for? The KBGM-H09 has a whopping 17 buttons and is suitable for both desk & lap play!
The Akecon Leaf can be bought as a lever or leverless controller with Sanwa OBSC buttons and the latest Brook PCB.
The LBER 2040-L16 looks and plays like an Haute42 controller but may have just the right amount of nuance for you to prefer its style.
Despite its small size, the Kylinix L14 manages to fit in 14 buttons, three USB ports, and more goodies that may appeal to you.
The Kylinix K15 is a spacious yet light & slim controller with more buttons than usual, and the buttons can even glow.
Just when you thought 16 buttons are a lot for a leverless controller, GuileKeys released the GK-21, which has 21 buttons!
FlatboxLab's bigger Flatboxes can feature sick art that can also show through the buttons, which have hot swappable switches.
The Mytrix M16 is one of those thin stickless controllers that have 16 buttons laid out in a way that also gives you access to a WASD layout.