Subsequently, we calculated the exfoliation energy of one thousand p-type materials and one thousand n-type materials that have highest standard deviation of effective mass and compared them at the PBE and PBE+vdW level. We find that the use of a vdW correction is highly recommended for any calculation of accurate exfoliation energy, successfully erasing aberrant results that arose at the PBE level. By knowing the exfoliation energy and conductivity effective mass we were able to predict physiological and structural features of a range of materials. Not least among which, we were able to identify at least one material that to our knowledge has not been considered as a two-dimensional material previously but that exhibits the physical hallmarks of such compounds. We provide the full dataset of our results in the SI (Tables and) and encourage the reader to explore further, bearing in mind that there are known exceptions to the proposed relationship (specifically WS2 in this case).