AliExpress has some of the best leverless controllers out there, and it also sells other kinds of controllers that you should check out.
The RTU is a slim 1" mini leverless controller with Cherry MX or Glorious Pandas switches that you can customize the button colors of.
This mini all-keys controller made of aluminum and acrylic can be ordered in leverless or WASD formats with various switches.
The SLM-B5 is a mini all-button controller that can beautifully produce blue, purple, green, or red light from below.
Can you believe that this slim and leverless SKY2040 controller by SkyUan comes with Gazzew GTMX switches?
The MAG-SF6 is an acrylic all-button controller with 15 buttons in order to conquer your Street Fighter 6 foes with ease.
The BSP-Y01 ultra mini arcade stick was designed to dock phones, but it also has multiplatform compatibility.
The FightBox M8 is a metallic & acrylic hitstick that comes with Sanwa and Baolian buttons as well as a Sanwa joystick.
The Slimbox R5 is a thin all-buttons mini controller infused with Kailh & Gateron switches and comes with Brook or Pico PCB options.