When Janet tells Tahani about her funeral on Earth, she says, "Moby spoke first. He claimed that the two of you..." at which point a disgusted Tahani cuts the story off. According to the show's podcast, this is a reference to an incident from May 2019, in which musician Moby claimed in his autobiography that he once had a secret romantic relationship with actress Natalie Portman, a claim Portman denies.
As revealed by the show's podcast, the five stages of grief in Jacksonville, briefly alluded to by Jason, are: 1) Graffiti, 2) ATV race, 3) Tattoo fight, 4) Prank call the morgue, 5) Graffiti the morgue.
One of the Good Place Janets summoned among the 38 is wearing a dog print outfit, which would suggest she is the Janet for doggy heaven.