What are the available methods for the calculation of reference interaction energies of layered materials and in which codes they are implemented? For example, I know RPA-ACFDT in the DFT concept. But it's very computationally expensive and not suitable for complex structures. What are some other methods which are practically available? It does not have to be in the DFT concept, but it has to be used as reference data since experimental interaction energies for layered materials are not available.
Since I'm asking for both the method and the implemented, a format such as in this answer can be suitable.