Over the last ten years, the role of hybrid metal halide perovskites has received significant attention as suitable materials for various electronic applications. Indeed, their outstanding optoelectronic properties such as high-power conversion efficiency, tunable bandgap, and high absorption coefficient, make them suited for several applications in different devices as photovoltaic cells, photodetectors, light emitting diodes, and sensors [2]. Starting from the hybrid organic-inorganic perovskites (HOIPs), the introduction of a chiral molecule as organic cation leads to the breaking of the spatial inversion symmetry, allowing new possible designs based on the combination of polarity and chirality [1,3].  In the scientific scene, this opened plenty of novel applications provided by outstanding chiroptical properties, such as circular dichroism, circular polarized emission, chiral induced spin selectivity and so on. To extend the actual knowledge of these chiral systems, it is important to investigate those parameters which have a major impact on the chirality transfer mechanism, with the final aim to unveil it. From a material chemistry point of view this involve an important work on materials’ structure, involving several modulations/substitutions on the latter. More specifically, in this contribution we will present the results of the role of the central metal, showing the modulation of the optoelectronic properties with two different metals. Firstly, we prepare an initial series of novel chiral metal halide maintaining the chiral cation (4-Chlorophenyl)ethylenimine (Cl-MBA), accompanied by different central metal, namely Pb, Sn and Ge. This approach brought to the discovery of (R/S/rac-ClMBA)₂SnI₄ and (R/S/rac-ClMBA)₂GeI₄ compositions, and to another interesting Ge-containing 1D system, namely (R/S/rac-ClMBA)₃GeI_5. The work provides a comparison not only in terms of structural features and chiroptical properties but also in terms of computational modelling, which helps us to deeply understating the role of central cation and the difference in terms of efficiency moving from a Pb-based perovskites to a Pb-free one. Final aim of this work is to unveil the impact of chemical degrees of freedom on the chirality transfer between the organic cation and the inorganic framework to provide tuning strategies for materials engineering.