Some synths have a detune facility, but I truly think this is pointless..
Unless you are having to track new parts to a piece recorded to A=432, don't bother.
It is pointless. Audio (and the laws of physics) does not care about integers, or the names that we apply to it/them. It only cares about ratios, and they will stay the same, regardless of the starting point, or base level.
Different "tunings" or "intonations", where the ratios vary, are interesting. This current, strange internet phenomenon of A=whatever is a distraction, and meaningless.
Sorry if that sounds harsh.