Vibrations on the front axle

Hello together, the Anniversary is making me a bit perplexed. The following has been done over the last year: So at 118tkm, I believe, both front crossbars have been exchanged, as clear noises were heard. After that everything was fine again, until again slight “cracking noises” from the front axle were heard (mainly with slight ground waves briefly in a row). Check of all front axle parts did not produce any results, nothing defective. Then came vibrations (with steering wheel) I suspected the tyres, since the first set of summer tyres! But since still good profile, I had to balance again, no improvement, but the mechanic found that the shock absorber screws (central screw on the “Dom” were too loose. So the shaking was tightened and away! As a reason for the crackling noises the cathedral bearings were diagnosed, should then be made. At meanwhile 133tkm there were 2 new tyres in front.. . and… now the vibrations are back again… Now I had the cathedral bearings made right away, which unfortunately did not bring anything about with the vibrations and from time to time it still cracks! Tyres change from front to back (different manufacturers, not scolding, there was no more…) to exclude them, but also brought nothing. Who still has an idea? Have already read the contributions to the drive shafts, only with me vibrates also without acceleration and sometimes more and sometimes who iger…?? So always here with good tips, so that the car is completely fun again! Greetings audax