Most of the chiral perovskites reported so far are based on the few available chiral ligands on the market such as methylbenzylammonium (MBA), βmethylphenethylammonium (MPEA), 1-(naphthyl)ethylammonium (NEA), R-3-aminopiperidine (3APD), 3-ammonioquinuclidinium (3AQ), and 2-octylamine (2OA). In terms of structural motifs, 2D chiral perovskites are those most commonly reported together with 1D systems, while 3D systems have been predicted but not yet realized. This directly correlates to the fact that a chiral center requires organic ligands that are too big to be accommodated into a 3D lattice of interconnected octahedra but are easily inserted in layered systems. In terms of metal ion lead, analogously to MHPs for photovoltaics, lead has been used to prepare the vast majority of chiral perovskites, with copper being the second most common metal found in currently available chiral perovskites and with just one Sn-containing system reported to date. Considering the toxicity of lead, it is of significant interest to move towards lead-free systems, as it is happening for photovoltaic applications, particularly in a relatively young field of research as the one of chiral perovskites. Tin replacement for lead in MHPs is a pervasive strategy not only to provide less toxic materials but also to reduce the band gap towards the optimum according to the Shockley-Queisser limit. In addition, tin-based perovskites have similar or superior electronic and optical properties to leadcontaining systems, such as higher charge carrier mobilities and long-lived hot carriers. In the field of chiral perovskites, except for the (R-/S-MBA)2SnI4 system (MBA= methylbenzylammonium), no other tin-based materials have been reported so far. However, in view of potential future applications in chiral optoelectronic devices, the use of tin could guarantee a reduced environmental impact and provide the degree of optical properties tunability required. In addition, the design of novel chiral perovskites should be based on solid structure-property correlations, which are the basis of the actual engineering of perovskites for optoelectronic applications. There are only few structure-property correlations works on chiral perovskite, mainly as a consequence of the limited number of phases with solved crystal structures reported, and few rational series of materials where, for example, the impact of organic ligand, central atom, or halide has been progressively and rationally changed to unveil the respective roles on the chiro-optical response. This is even more dramatic when considering tin-based perovskites.