I don’t want to know the answer, and it may be because of my limited understanding of biology, but it wouldn’t even surprise me if humans could interbreed with some of the great apes (rationale: I wouldn’t know why that would be much different from lions and tigers or horses and zebras. Those are within-genus, but I don’t think ‘genus’ is that well-defined, and, certainly historically, biologists have wanted to keep humans well-separated from animals, so there’s a decent chance they exaggerated the separation between humans on the one hand and chimpanzees and bonobos on the other)
Reminds me of that study on the Internet which said that Humans = Monkeys who mated with Pigs; I'm speculating that the Abrahamic religions knew about the DNA link and made it sacrilegious.
This is the sort of question that gets raised at the end of Sapiens and throughout homo deus two books by Yuval Noah Harari.
The next 100 years are going to be very interesting as science is really testing the boundaries of what humans are capable of and I suspect more and more experiments will occur just to trial and error and see what happens.