Search for new physics beyond the standard model in final states with two opposite-sign same-flavor leptons and missing transverse momentum or at least two jets and two isolated same-sign or three or more charged leptons are presented. This search is done using data corresponding to a sample of proton-proton collisions at $\sqrt{s} = 13$ TeV with an integrated luminosity of 137 fb$^{-1}$, collected by the CMS experiment at the LHC. The numbers of observed events are consistent with the expectations from standard model processes. The results are used to set lower mass limits on various supersymmetric particles at a 95\% confidence level.