carbon can get noisy (it has happened to me, i had to replace 1W carbon resistors with metal film, as i got nopise from the first gain stage anode resistor), so i would just use metal film everywhere. Anode resistors should be 1W types (for the voltage rating). larger wattages ceramic power resistors.
Otherwise standard 1/2W metal film for everything else.
i assume this is a valve amp.
Others here with far more experience than me may have other suggestions.