Gaia DR2 has revealed numerous substructures in velocity space and in the R-Vphi plane for stars within a few kpc of the solar position. Some of these substructures trace ridges of constant energy, others trace ridges of constant angular momentum. In addition, GALAH has identified that more than 40% of local stars have super solar metallicities, and their origin in the solar neighbourhood has long been a mystery. In this project, we aim to study the velocity substructures identified in Gaia DR2 as a function of GALAH metallicity, and determine which stars are likely observed near the solar position as a result of resonant orbits.