A few examples (related to COVID-19 outbreak):

Prefusion 2019-nCoV spike glycoprotein with a single receptor-binding domain up (EMD-21375)
The nsp12-nsp7-nsp8 complex bound to the template-primer RNA and triphosphate form of Remdesivir(RTP) (EMD-30210)
Structure of novel coronavirus spike receptor-binding domain complexed with its receptor ACE2
The crystal structure of papain-like protease of SARS CoV-2