Cermet types of Pot compare perform favorably against Carbon types for lower noise and reliability.
Larger wattage ones will also have a larger wiper contact area.
'Sealed' types will last longer with their lack of dust etc ingress.
As a starting point without more specific information on what value/rating you are looking for, have a look at: Bourns - Trimpot® Trimming Potentiometers - Single-turn
as have found these more reliable than some other manufacturers, although more expensive