Dark Souls 3 contains 25 bosses in total with 19 bosses in the base game and 6 in the two DLCs Ashes of Ariandel and The Ringed City. Here is the best boss order in which you should progress through ...
Killing the Nameless King's dragon isn't too difficult, but slaying the king is a different story. The Nameless King has sweeping attacks that have large areas of effect so be on your toes.