Its really as if all USB connected MIDI-keyboards works in lmms.
We have a list : https://lmms.io/wiki/index.php?title=Us ... _keyboards
That can be used as a guide, but there are many more keyboards that works fine im sure.
The most important is how to connect through USB, and to do that in the right sequence:
https://lmms.io/wiki/index.php?title=Using_MIDI