Christian, I have both papers and to my eye the Ilford MGIV Warmtone semi-matte is glossier than the Foma Fomatone MG Classic. So, it's the opposite of what you want.
The Kentmere Warmtone is a good suggestion but it doesn't have the silky smooth matte surface of either Foma or Ilford, it has that bubbly surface, like the old Agfa matte papers used to be.
- Thomas