Twitter, Facebook, Youtube come to mind. The two that immediately come to mind would be Kathy Griffin holding Trump's severed head and Eminem shooting a Trump look-a-like. Neither were deplatformed for these graphic depictions / calls to violence, and one even reposted the offensive media in November.
Kathy Griffin's career still hasn't recovered and this was imagery not a call to action. I find it funny when Griffin gets brought up as if she wasn't "cancelled." Its an example of even treatment not hypocrisy.