I just canceled the WSJ. It is not terrible. They will try and convince you to cancel but will eventually let you cancel. The worst is SirriusXM Radio.
I was waiting for SXM to pop up. Literally one of the worst companies for this and I say this as someone who sadly worked for them for a little bit. You can manage everything in the web portal but to cancel you click a button and it tells you to call them. I know they have content and some people use them but they literally have so much friction in cancelling that it is a huge part of their business.