What is the best OKR Software for Microsoft 365?

So... It is finally happening. Viva Goals is less than two months from shutting down. With Viva Goals having been built by Microsoft for Microsof users, it had a certain advantage over other apps in the app store. So now, what do you all think is the best OKR Software for Microsoft 365? Because I'm pretty sure even though they were warned well in advance, there are probably some organizations still using Viva Goals that will need to switch fast!