Naruto Uzumaki still has the Six Paths Sage Mode powers, however, for some reason, it looks just like his other chakra modes.
Did Naruto lose six paths powers?
The Six Paths Sage Mode is a heightened state of Sage Mode, which drastically empowers the user's abilities to a far greater extent by combining the Six Paths Sage Chakra and the chakra of all nine Tailed Beasts. Hagaromo takes back his Yang chakra from Naruto, thus taking away the Six Paths Sage Chakra.
Does Naruto still have six paths mode after losing Kurama?
To answer your question, Naruto still has Six Paths Sage Mode after the death of Kurama, but he can no longer generate Truth-Seeking Orbs as he did in Naruto Shippuden.