Start poking around the manufacturers here. http://www.greatmodels.com/ Click on Manufacturer, select Figures in the drop down menu and hit Search. That will bring up all manufacturers who make figures. You'll have to fish around to find stuff that will suit your needs though.
Lots of good resin and white metal figures out there in 1/35th scale. Just bear in mind that the Battle of the Bulge was in the dead of winter so the 101st were wearing the same gear as every other infantry outfit in the theater. What that means is that pretty much any WWII US infantry figure in heavier gear will do nicely.