Faderfox's new MIDI controller has all the knobs you could ever need
Midi Fighter, midi controller - gsalegal.pe
Novation Launch Control With 8 Multicolor Backlit Buttons and 16 Knobs Midi USB Controller
Midi Fighter Twister: These are NOT your average knobs - YouTube
Amazon.com: AKAI Professional MIDImix - USB MIDI Controller Mixer with Assignable Faders & Master Fader, 24 Knobs and 16 Buttons, 1 to 1 Mapping With Ableton Live : Musical Instruments