M-Audio Keystation 49es (Legacy)
It has a pitch wheel, mod wheel, volume slider, and 8 free programmable buttons. A sustain pedal also works natively via a 1/4" Jack. It's a simple plug and play.
about $60 (used)
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It works flawlessly. I used it to play piano and synth plugins in Loopy Pro. It's great for brain storming ideas with Loopy Pro as well. Definitely use a sustain pedal to maximize the use of playing keys. I'm using iOS 17.