I will review some aspects of phenomenology of Transverse-Momentum-Dependent distributions (TMDs) that I have been investigating during my PhD and which are potentially interesting for the 12 GeV physics program at Jefferson Lab. In particular, I will address the flavor dependence of intrinsic transverse momentum in unpolarized TMDs, focusing on its extraction from Semi-Inclusive Deep-Inelastic Scattering (SIDIS) data and its impact on electron-positron annihilation and proton-proton collisions. Moreover, I will describe the TMD factorization theorem for the qT-spectrum of quarkonium produced in proton-proton collisions and the possibility to extract from it precise information on (un)polarized gluon TMD PDFs. Finally, I will present some new TMD structures and discuss their link to small-x physics.