Properties of the magnetic topologies for cool, main-sequence stars obtained via ZDI. The label of GJ 436 is highlighted in red. The y and x axes represent the mass and rotation period of the star, and iso-Rossby number curves were overplotted using the empirical relations of Wright et al. (2018). The symbol size, colour, and shape encode the ZDI average field strength, poloidal and toroidal energy fraction, and axisymmetry. Data entering the plot are taken from Donati et al. (2008), Morin et al. (2008, 2010), Phan-Bao et al. (2009), Hébrard et al. (2016), Kochukhov & Lavail (2017), Moutou et al. (2017), Kochukhov & Shulyak (2019), Klein et al. (2021), Martioli et al. (2022), and Cortés-Zuleta et al. (2023).