Knocking when steering wheel is turned

Hi everyone.   I have a 2016 Forester.  The shoulders of both front tyres are wearing unevenly and I had a rumbling sound that became more/less prominent at gigher/lower speeds.  I also noticed a clunk sound when turning the steering wheel.  I have had both front wheel bearings, both front stabiliser link bars and both wishbones/suspension arms changed.  The rumbling sound has gone and the clunk sound has lessened, but it is still there when turning the steering wheel.  I have driven with the car on full lock and there's no clicking sound, so I am tempted to rule out CV joints.  Does anyone please have any suggestions?  I have only had the car 6 months and it's cost me 800 so far in repairs.  Thanks in advance.