Is Sasuke Stronger Than Naruto Without Kurama?

Naruto without Kurama isn't as powerful as Naruto with Kurama, obviously. But the Gap in power isn't as extensive as you might believe, and Naruto certainly is still one of the most powerful shinobi even without Nine-Tails Chakra. TLDR: Naruto isn't 'nothing' without Kurama, and he and Sasuke would still be equals.

Who is stronger Sasuke without rinnegan or Naruto without Kurama?

Naruto would be the winner. Naruto has an immense amount of chakra and reserves, and also sage mode, which is significantly stronger than Sasuke's seal (Heaven). Sasuke without eye powers is just a very powerful ninja.

Does Naruto beat Sasuke without Kurama?

To the fandom it seems that, although it would be extremely difficult, it is not impossible, and at worst the fight might result in a draw. The reason for that is, even without Kurama, Naruto still retains his Sage of Six Paths mode and his own Sage Mode that he mastered through training.