He is located in Burthorpe and will give you the first Slayer Task in OSRS. You only need to open the map and then find the location where Slayer Task can be completed. Equip the proper armour and gear, then head there to fight monsters. For example, if you need to fight melee ...
The best slayer master for slayer points is Krystilia since you’ll get 25 points per completed task. However, because she will always send you in the Wilderness, you’ll always be at the risk of PvP, and depending on your own preferences and skills, this can be a huge pro or con. ...