I think Kentmere FP VC FB would fit the bill except that it is about a stop faster than Forte. It is certainly not a warm toned paper. I like Kentmere FP. It is easy to work with: responds well to selenium toner and dries flat. Certainly not warm-toned though.
If you want a white base with a more deep-chocolate black, and don't need sizes larger than 11x14, check out Zone VI paper at Calumet.