Yes, you have two options. The first option is fighting the skeleton hellhounds vet´ion throws at you when he changes form. These are a lot stronger than the regular hellhounds you face in old-school Runescape. Moreover, you can only find these past level 20 wilderness, so it is pretty dangerous to kill these with your slayer helmet and other great gear. It is a pretty fun way to do a couple of kills of your slayer task and make money at the same moment by killing vet´ion.  The other option is the hellhound boss, Cerberus. This counts as a hellhound and is a great option if you want to kill something else besides the regular hellhounds you normally fight in osrs. Cerberus is a pretty hard boss, and you need 93 slayer to be able to fight him. Luckily, you get rewarded quite well if you kill this monster. You have the odds of getting amazing drops like the primordial crystal. These are worth millions a piece, so they are an amazing drop to get and well worth it to go out of your way for if you want to fight something else and make money.