Check balljoints on the bottom arm m8,get a big bar inbetween bottom of hub and bottom arm and lever them to check for play in balljoint

Also worth cleaning the hub and the centre of the alloy where it sits on the hubs,if you've got aftermarket alloys you will probably have a spigot ring fitted in the centre of the alloy
Alloy should slide onto hub nice and freely,not be tight goin on

Could be anythin connected to steering though sorry m8,I would get inner TCA bushes polybushed if I was you