Promising HW fighters who won all fights

I wonder whom do you believe is able to keep that record of being not only (oficially) unbeaten but first of all being able to continue winning streak. The only one who matches these criteria and is currently in the top 10 of HW is Adam Kownacki. I don't know who is he going to fight now (too bad that not Wilder) but he most probably will keep that record. Hrgovic can also have that chance as it will be difficult to find a strong enough opponent for him outside top 10. If we include Usyk here (who won all his battles but in cruiser and only one in HW), opposite to many, I think he will lose his first battle when he fights a strong real HW. Can be even Chisora for example. Who else do you think can be mentioned here ?