It's really painful when you've got coverage of state court cases where you have neither the case name nor the court it was filed in nor the docket nor any document nor anything that would let you figure any of this out.
If you want to deal with non-SCOTUS federal cases, your choices are to use PACER or to use RECAP (https://www.courtlistener.com/recap/), where the documents may be available. E.g., the appeals court docket for this case is at https://www.courtlistener.com/docket/67448481/in-re-purdue-p..., note that many documents aren't available because no one made it free via RECAP.
If you want to deal with state courts... good luck! Every state has a different system with different level of pains to track down.
They do a good job of linking to or posting quality articles.