sps has strong toxins, so make sure what u want. sinularia is also very aggressive. i have softies and sps. make sure there is enough room and charcoal running somewere. stonies light and water movement differs from softies, some prefer stronger light and current.
Montipora is a subnissive coral (not aggressive) so take care there is no soteis 2 close to harm it. they should fit with your softies in current and lightning.
hope this helps