I’ve got this controller:
It’s my perfect companion for Zynthian with 4 bank of pads and 4 bank of controllers (rotary encoders, slide pots and switches all assignable) that you can store in presets. Pads are excellent to play with, with velocity and aftertouch. And it has a built in step sequencer.
He can talk in MIDI, Mackie Control or HUI protocols.
I didn’t test it yet with the up to date software, but so far except the DAW navigation controls, it works nicely with Zynthian. It’s a fun toy for live playing.