Using top quarks to probe new physics @ the Run 3 of the LHC

 In this talk we will discuss the use of top quark angular observables to probe New Physics at the LHC. Pair production of top quarks is used as a case study to explore several spin observables that show interesting potential, already for the RUN3 of the LHC, that just started. The associated production of top quark pairs with additional gauge bosons (ttX) like the Standard Model Higgs boson or mediators to Dark Matter particles is also explored, in particular when using top quark spin observables.