Semi-Inclusive Deep Inelastic Scattering (SIDIS) is a powerful method for studying transverse momentum-dependent parton distribution functions (TMDs) and fragmentation functions (FFs). This paper reviews the ongoing SIDIS program using the CLAS12 spectrometer at Jefferson Lab, which enables precise, multidimensional measurements of cross sections and spin asymmetries in the valence quark regime. By utilizing different unpolarized, longitudinally, and, in the future, transversely polarized targets in combination with a polarized electron beam, CLAS12 provides access to all structure functions relevant to SIDIS. This contribution will focus on both single-hadron and di-hadron SIDIS preliminary and published measurements across a broad range of $Q^2$, $x_B$, $z$, and $P_T$. The current status of these studies and their theoretical implications will be discussed in detail.