Sure, here are some sources.

Cases of myocarditis after vaccination: https://jamanetwork.com/journals/jama/fullarticle/2788346

Cases of myocarditis after COVID infection: https://www.cdc.gov/mmwr/volumes/70/wr/mm7035e5.htm

And also, please forgive me for not taking a guy on Rumble seriously. If you have a study, I'm more than happy to engage.