Search for New Resonances Coupling to Third Generation Quarks at CMS

I present an overview of searches for new physics with top and bottom quarks and top quark–antiquark pairs in the final state, using proton–proton collision data collected with the CMS detector at the CERN LHC at a center-of-mass energy of 13 TeV. The results cover non-SUSY-based extensions of the SM, including new heavy gauge bosons, like a $W^{\prime}$ boson replicating the features of its standard model counterpart, or excited third generation quarks. We considered both semileptonic and fully-hadronic scenarios. We explore the use of jet substructure techniques to reconstruct highly boosted objects in events, enhancing the sensitivity of these searches.