There aren’t. Hela is a Death Goddess (of several). Like a harbinger with a bit more power. She’s someone who works FOR Death.
Rio IS Death. She is the concept itself. There is only one Death.
Hela has a pact with Death (Rio) that allows her to claim the souls of Asgardians and usher them to their afterlife.
Death on the other hand is a conceptual law of every universe in the multiverse and each Death can reach everything existing in their universe just short of The White Hot Room.
Senator Ed Markey has proposed extending the TikTok US ban deadline by 270 days.
“TikTok has its problems, But a TikTok ban would impose consequences on millions of Americans who depend on the app for connections and their economic livelihood. We cannot allow that to happen.”