It seems like the biggest deal with fungicide on beans is whether you do it or not and not so much what you are spraying.  

I've like Priaxor, Trivapro, Quilt XL, Miravis Neo, Lucento.   This year will be half lucento and half priaxor/tilt with an insecticide, there is some synergy so just do it.  We always have stink bugs to deal with so it's worth it here.