A chicken-head potentiometer knob has a 'beak' pointing at the selected value, which makes it extremely easy to read as well as being a tactile-friendly way of setting values without looking.
These black plastic chicken-head knobs fits your Neutron perfectly and are well suited for the oscillator pitch potentiometers as well as the LFO shape pot. Other positions might work, but since they're wider than regular knobs, it might get a bit cramped*.
Come sets of either 2 or 3 knobs.
* No, that's not a euphemism. Any associative mental images is assumed to be the result of the reader's dirty mind, not the author's.
Only a few sets left - order now to avoid delays