Is there any jellyfish that do not sting or are not dangerous?

Question: Is there any jellyfish that do not sting or are not dangerous?
- Keywords:
  dangerous,
  jellyfish,
  sting
Asked by the joeff to Jasmine, Chinna on 14 Nov 2018. This question was also asked by Hazel1597, adrianplays.
- Jasmine answered on 14 Nov 2018:
  
  All jellyfish sting but some stings are not as bad as others. Unless you know the different types of jellyfish and you know which ones are dangerous and which ones aren’t then I would suggest that you don’t touch any of them just in case.

Question: Is there any jellyfish that do not sting or are not dangerous?